Fences off screen

Hey 

I've bought fences im trying to use it, but the fences are all off my screen and i cant grab them or move them because of it.

here you can see the screen, most of the fences are off the screen, and there is one large fence over all of the others so i cant click any of them.

I have tried uninstalling and installing again.

the first time i installed the fences they worked ok, but then when i connected to my second monitor, it messed them all up