Hi Guys I have a Samsung 20" 205bw with a Geforce 6800. Everything has been working all good until recently. Initially I thought it might have something to do with the video card overheating but I don't think so. I have tried updating the drivers, but unistalling old and installing new, but to no avail. Here is the screenshot: http://img239.imageshack.us/img239/3459/51227891cr9.jpg It goes like this when I play a game, when using firefox and sometimes when I click on the start menu, then all programs. Thank you for your time and help
Looks like bad video memory to me, can't be 100% sure though. Have you got another graphics card that you can test in the system, that would be the best way to test it i reckon.