Problem of View with my graphics card

Here are that made 1ans that jai my board graphics egforce 8600 WP and since all was well. Except later day during the lighting of the PC, (I want to specify that it ny had any problem when I washed to close the day before…)I have a very odd posting decran and since average step to make it leave. I know that my graphics card because the problem with my graphics card integrate it does not.

So when the pc jallume everything normal fan of the graphics card works well except laffichage which is shit shit

Intel
P4 3.2 gig
1024 ram
My food was a 300 W
Cg: 8600 gt egforce
dd 150 go

I would say graphics card hs otherwise trying to uninstall and reinstall your drivers