What can cause this problem?

[M.r Bob]

i been having this problem my screen get pixelation this happen on my desktop or went i surf the net, also this happen only on Vista on XP I don't have this problem

here is a screen shot of my problem

thanks for you help

http://img.photobucket.com/albums/v330/MATA7/test.png

[lduguay]

Woot, space invader!
Looks like overclocking going bad, or flaky video memory.

BTW, your avatar :barf:

[M.r Bob]

but i don't have nothing Overclock

[SLippe]

but i don't have nothing Overclock
You sure about that?

P4 3.0 @ 3.50MHz ring a bell?

BTW, I think you mean GHz. ;)

[M.r Bob]

thats my old sing i forgot to change it

lol i dint even notice mgz :) , it could be like that for 2 years

[SLippe]

thats my old sing i forgot to change it

lol i dint even notice mgz :) , it could be like that for 2 years
LOL No problem. As for the screenshot you posted... It does seem like a bad card, but weird it only does it in one OS. Might be a bad driver install or something. Kind of baffling, actually.