I'm not sure where to look for this issue; every once in a while (not very often) while I'm playing a game I get lots of weird visuals happening. I get what I call "horizontal snow" on my screen (lines like - - -- ), meaning the lines move and disappear and reappear. Also there are random flashes like lightning.
When I exit the game, I get the same thing on my desktop.
The problem is fixed with a restart. Then I can go days or weeks before it happens again.
Any suggestions as to what the problem might be? Should I be really that concerned where it resolves upon reboot and may not appear again for weeks (despite heavy gaming)?
My system: amdx2 4200, 256m bfg oc'd 8600gt (latest nvidia drivers), 2gig ddr2 ram, msi k9agm2 motherboard, and running vista home premium.
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