Changing mice!!
Just a quick question...can you change your mouse, while your pc is on? ....or do you have to shut it off?
Yes you can change it while your PC's on - providing it's a PS/2 or USB 
The old 'styled' mice required a reboot to re-function, if detached.
It's very unlikely a PS2 mouse can be changed while on....they're as fussy as serial mice
The fun bit is having more than one...eg PS2 AND USB...
Yes, you can...I've frequently had both a PS2 and USB working. It's much the same situation as having a mouse at the same time as a Graphics tablet and pen. Either one grabs the 'movement'...
PS2 disconnections while running can/do cause system lockups and/or loss of keyboard.
I still like the BIOS Error.....
Keyboard not found. Press F1 to continue.
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