got a weird problem here...
 

been playing mohaa since it came out with no problems... recently it has started to crash about 8 minutes into playing. it doesnt matter whether single player or dm. the graphics goes crazy..every little dot on the screen lights up sweeping in blocks from left to right starting from the top. then it will freeze up and it has even sent my computer into what i think is hibernate mode that i cant get out of... each time i must restart computer. i have reinstalled several times(deleting all files first) so i guess its graphics card. i have updated driver and no help. when it is running it runs great then out of no where it gets grainy and then freezes. anyone have any ideas on what it might be? thanks.

virus? reformat.

hi, i did have a virus and i deleted what i think are only the infected files but i could have deleted something important. when you say reformat what exactly does that entail? thnaks