asus a7n8x dlx, xp2600/333, 2x512mb pc2700, geforce 4 ti4200 64mb, win xp pro, dx 9.0b, nforce 2.45, det 43.45, samsung 40gb 7200rpm
Note: no SP1 and no OC!<P ID="edit"><FONT SIZE=-1><EM>Edited by mito on 05/18/04 11:10 AM.</EM></FONT></P>
If it always happens when your 'puter has been on for a while, I'd say possibly overheating of the Gfx card, which is probably down to poor airflow so do you have any CaseFans (besides one in PSU) (This is what PhukFace was asking...)
Is your Gfx card Overclocked? If so see what it's like at default levels. You could maybe also try underclocking it to see if that's the problem (although this is far from an ideal permanent solution of course)
I was replying to endyen, saying for him to check YOUR link, which is why I said it looks like the Gfx card, rather than a monitor problem - Sorry for any confusion there!
PLUS, from a logical point of view, if it's the monitor then a screen dump wouldn't have the problem anyway!
I agree with the others, it looks like you should send the card back. If it's no longer in warranty, then try underclocking it to see if the problem goes away. If it Does, maybe adding some extra cooling (Ramsinks) would help, or maybe the fan on the 9700 is dying?