Help me out plz!

Ok, i ben playing a game for a while now on this computer cald
maplestory, but out of no where, it stop working! Wen ever i try using
it, my computer resets wen it go's to fullscreen mode! I did a system
restore but didnt work, i formatted my computer but still didn't work!

Maplestory runs on something cald GameGuard, and i tried to download
some other game by GameGuard and it dos the same thing!
Can any 1 help me?
And not to long ago, GameGuard had an update.
Hope this can explained it enoth for you to help me! \
I think it has somthing to do with my Video card, i dono!

Sorry if my spelling and grammar was bad!

I would be rely happy if you can help me!
THANX!