Gal Civ 1 - buffer overrun error

Hi sorry for posting this on the gal civ 2 forum but the one for the original game doesn't appear to be working anymore.

when i play the game it keeps getting to a certain point and crashing with a buffer overrun error. i've looked everywhere for a solution but it doesn't look like anyone can help. im not running any mods, and have the updated version as i bought it from steam. please if anyone knows how to fix this id be grateful as im gutted i cant play the game

Debug Message:  ******* Starting Game Shell ******* Debug Message:  Going Fullscreen Debug Message:  Preparing to change display settings. Debug Message:  RGB in format 5:6:5, Masks reported as f800:7e0:1f Debug Message:  Now Fullscreen Debug Message:  Shell initialization complete Debug Message:  ***** Initializing Game ***** Debug Message:  Timer Frequency is 0 da7a64 Debug Message:  LoadAllModelsInDirectory: No files matching mask Setup\*.mdl. Debug Message:  LoadAllModelsInDirectory: No files matching mask C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Setup\*.mdl. Debug Message:  LoadAllModelsInDirectory: No files matching mask Mods\Setup\*.mdl. Debug Message:  Version 1.520000 *DEBUG ERROR: *** No string table files in directory: C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\English.str *** *DEBUG ERROR: *** No string table files in directory: Mods\Data\English.str *** Debug Message:  Added fonts: VerdanaWhite11  VerdanaWhite12B  VerdanaYellow11  VerdanaLtBlue11  VerdanaGreen11  Debug Message:  Added fonts: VerdanaRed11  VerdanaRed12  VerdanaYellow12  VerdanaOrange12  VerdanaLtBlue12  Debug Message:  Added fonts: VerdanaDkBlue12  VerdanaLtBlue12B  Verdana00Race11  Verdana01Race11  Verdana02Race11  Debug Message:  Added fonts: Verdana03Race11  Verdana04Race11  Verdana05Race11  Verdana00Race12B  Verdana01Race12B  Debug Message:  Added fonts: Verdana02Race12B  Verdana03Race12B  Verdana04Race12B  Verdana05Race12B  VerdanaOrange12B  Debug Message:  Added fonts: font2  font1  Comic10  Comic12  Comic12B  Debug Message:  Added fonts: Comic14  Comic14B  Comic16  Comic16B  Comic18  Debug Message:  Added fonts: Comic18B  Celtic14  Celtic12  Celtic10  Basker14  Debug Message:  Added fonts: Basker16  BabylonBlue11B  BabylonBlue11  BabylonBlue10B  ArialGreenB10  Debug Message:  Added fonts: ArialYellowB12  ArialLtBlueB12  ArialDkBlueB12  ArialGreenB12  ArialRedB12  Debug Message:  Added fonts: ArialWhite12B  ArialWhite14  ArialWhite16  ArialOrange12B  ArialLtBlue12B  Debug Message:  Added fonts: ArialLtBlue14  ArialGreen14  ArialRed14  ArialYellow14  ArialGreen16  Debug Message:  Added fonts: ArialYellow16  Arial02Race16  Arial13B  Arial16B2  Arial10  Debug Message:  Added fonts: Arial12  Arial12B  Arial14  Arial14B  Arial16  Debug Message:  Added fonts: Arial16B  Arial18  Arial18B  GaraWGold11B  GaraBW14B  Debug Message:  Added fonts: GaraW11B  Debug Message:  Added fonts: Verdana07Race11  Verdana06Race11  Verdana07Race12B  Verdana06Race12B  Debug Message:  No Gfx\PolPartyLogos\*.pcx files in current directory. Debug Message:  No Gfx\PolPartyLogos\*.tga files in current directory. Debug Message:  No Gfx\Message_RobotNeutral.pcx files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Setup\*.pcx files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Setup\*.tga files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\PolPartyLogos\*.pcx files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\PolPartyLogos\*.tga files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\Message_RobotNeutral.pcx files in current directory. Debug Message:  No Mods\Setup\*.pcx files in current directory. Debug Message:  No Mods\Setup\*.tga files in current directory. Debug Message:  No Mods\Gfx\PolPartyLogos\*.pcx files in current directory. Debug Message:  No Mods\Gfx\PolPartyLogos\*.tga files in current directory. Debug Message:  No Mods\Gfx\Message_RobotNeutral.pcx files in current directory. Debug Message:  Initializing sound card. Debug Message:  No Gfx\*.bik files in current directory. Debug Message:  No Movies\Imps\*.bik files in current directory. Debug Message:  No Setup\*.bik files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\sfx\*.wav files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Music\*.mp3 files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Event Music\*.mp3 files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\*.bik files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Movies\*.bik files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Movies\Imps\*.bik files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Setup\*.bik files in current directory. Debug Message:  No Mods\Gfx\*.bik files in current directory. Debug Message:  No Mods\Movies\*.bik files in current directory. Debug Message:  No Mods\Movies\Imps\*.bik files in current directory. Debug Message:  No Mods\Setup\*.bik files in current directory. Debug Message:  No sfx\*.wav files in current directory. Debug Message:  No Music\*.mp3 files in current directory. Debug Message:  No Mods\sfx\*.wav files in current directory. Debug Message:  No Mods\Music\*.mp3 files in current directory. Debug Message:  No Mods\Event Music\*.mp3 files in current directory. Debug Message:  Game Initialization completed. Debug Message:  Creating cutscene window. Debug Message:  Creating soundtrack handler. Debug Message:  Creating movie handler. Debug Message:  Initialize Game Options. Debug Message:  Create setup screens. *DEBUG ERROR: *** No string table files in directory: Data\ToolTips.str *** Debug Message:  Unable to open file Gfx\gridlines.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\gridlines.pcx Debug Message:  Unable to open file Gfx\Space1.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\Space1.pcx Debug Message:  Unable to open file Gfx\gridlines.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\gridlines.pcx Debug Message:  Unable to open file Gfx\CustomMiniMap.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\CustomMiniMap.pcx Debug Message:  Creating player setup screen. Debug Message:  Unable to open file Gfx\gridlines.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\gridlines.pcx Debug Message:  Unable to open file Gfx\Space1.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\Space1.pcx Debug Message:  Unable to open file Gfx\gridlines.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\gridlines.pcx Debug Message:  Unable to open file Gfx\CustomMiniMap.pcx ASSERT ERROR in file \Projects\Pear\Source\diskdata.cpp at line 119. Debug Message:  Unable to open Bitmap file: Gfx\CustomMiniMap.pcx Debug Message:  No data definition files at path Data\*.PARTY Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.PARTY Debug Message:  No data definition files at path Mods\Data\*.PARTY Debug Message:  Creating race setup screen. *DEBUG ERROR: *** Unable to locate font ArialLtBlue12,  FTDataManager::FindFont *** Debug Message:  Initialize Tilemaps Debug Message:  Set mouse. Debug Message:  Set update timer. Debug Message:  Begin playing intro movie. Debug Message:  Preparing to change display settings. Debug Message:  RGB in format 5:6:5, Masks reported as f800:7e0:1f Debug Message:  Preparing to change display settings. Debug Message:  RGB in format 5:6:5, Masks reported as f800:7e0:1f Debug Message:  No Data\Campaigns\Prelude To War\*.sav files in current directory. Debug Message:  No Data\Campaigns\Altarian Prophecy\*.sav files in current directory. Debug Message:  Sorting save game list by time. ASSERT ERROR in file \Projects\Pear\Source\model2d.cpp at line 2400. Debug Message:  Animation Small has 17 frames of animation, which does not divide evenly into 32 facings. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Gfx\*.tga files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Gfx\TacticImages\*.tga files in current directory. Debug Message:  Scanning sprites. Debug Message:  Scanning Models. Debug Message:  Scanning bitmaps. Debug Message:  No Gfx\*.tga files in current directory. Debug Message:  No Gfx\TacticImages\*.pcx files in current directory. Debug Message:  No Gfx\TacticImages\*.tga files in current directory. Debug Message:  LoadAllModelsInDirectory: No files matching mask C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\*.mdl. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\*.pcx files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\*.tga files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\TacticImages\*.pcx files in current directory. Debug Message:  No C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Gfx\TacticImages\*.tga files in current directory. Debug Message:  LoadAllModelsInDirectory: No files matching mask Mods\Gfx\*.mdl. Debug Message:  No Mods\Gfx\*.pcx files in current directory. Debug Message:  No Mods\Gfx\*.tga files in current directory. Debug Message:  No Mods\Gfx\TacticImages\*.pcx files in current directory. Debug Message:  No Mods\Gfx\TacticImages\*.tga files in current directory. Debug Message:  Initializing Galaxy. Debug Message:  No data definition files at path Data\*.TECH Debug Message:  No data definition files at path Data\*.IMP Debug Message:  No data definition files at path Data\*.ANOMALY Debug Message:  No data definition files at path Data\*.EVENT Debug Message:  No data definition files at path Data\UP_Issues\*.UPISSUE Debug Message:  No data definition files at path Data\*.RESOURCE Debug Message:  No data definition files at path Data\InvasionTactics\*.INVTACTIC Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.TECH Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.SHIP Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.IMP Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.ANOMALY Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.EVENT Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\UP_Issues\*.UPISSUE Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.RESOURCE Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\InvasionTactics\*.INVTACTIC Debug Message:  No data definition files at path Mods\Data\*.TECH Debug Message:  No data definition files at path Mods\Data\*.SHIP Debug Message:  No data definition files at path Mods\Data\*.IMP Debug Message:  No data definition files at path Mods\Data\*.ANOMALY Debug Message:  No data definition files at path Mods\Data\*.EVENT Debug Message:  No data definition files at path Mods\Data\UP_Issues\*.UPISSUE Debug Message:  No data definition files at path Mods\Data\*.RESOURCE Debug Message:  No data definition files at path Mods\Data\InvasionTactics\*.INVTACTIC Debug Message:  No data definition files at path C:\Program Files\Steam\steamapps\common\Galactic Civilizations I Ultimate Edition\GalCiv\Mods\Data\*.SBMODULE Debug Message:  No data definition files at path Data\*.SBMODULE Debug Message:  No data definition files at path Mods\Data\*.SBMODULE Debug Message:  Begin creating other screens. Debug Message:  MWinEditFields::Create - Unable to find sprite sizing graphic for InfluVoteTitle Debug Message:  MemMan: Unable to find pointer in GetBlockInfo.  Memory system: DataMan ASSERT ERROR in file \Projects\Pear\Source\memman.cpp at line 581. Debug Message:  MWinEditFields::Create - Unable to find sprite sizing graphic for EconomyTitle Debug Message:  MWinEditFields::Create - Unable to find sprite sizing graphic for MilitaryTitle Debug Message:  MWinEditFields::Create - Unable to find sprite sizing graphic for TradeRouteBtn Debug Message:  Loading game. Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  Total Ships: 166 & 0 are dead Debug Message:  AIAltarian: Set Colony Social Debug Message:  Destroying ship USS Colony Ship 246. Orbiting: 0 Debug Message:  Random Event: Begin Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  Total Ships: 166 & 1 are dead Debug Message:  AIAltarian: Set Colony Social Debug Message:  Displaying News Event.