Weird graphics problem
 

When I watch youtube or look at pictures, anything that is black has these strange patterns to it.

I've tried reinstalling vid card drivers, and it happens with different browsers.

Any idea what's wrong?
http://i35.tinypic.com/359y13c.jpg

EDIT: hmm.. strange, its not showing when I make a screen shot. It looks like, in the black areas, laced with white pixels..

try another monitor?

check your refresh rate? and make sure the cord is properly seated?

im getting these odd black columns randomly today
i've had 3 bsod in the past week
i cant diagnose if it's that or a virus

Sounds like artifacts?

^

Okay, I've kind of narrowed it down. It onyl happens when I have VLC running in the background.. like paused video. Essentially, in youtube, the areas are black, some are semi transparent, and let background through (ie. desktop, or video from VLC).

Weird eh?