I'm having some serious issues on my AMD desktop. I'm running a Geforce 7600GS AGP with a fan attached. It keeps temps down under 60C even under load. For some reason I keep getting weird graphical glitches in my games. In some games they're not too bad, like in F.E.A.R they just present as dark lines on walls or particles showing up as lines. But in some games, like Aquaria (pictured below), everything on the screen is just messed up. Every game seems to have its own problem with my computer. Any idea what could be causing this?
Also, and this might be the reason, I recently swapped out motherboard/processor. In removing my P4 I ruined it, so I moved all my parts into this AMD desktop and haven't reformatted/reinstalled anything. Could that cause this? Thanks.

Also, and this might be the reason, I recently swapped out motherboard/processor. In removing my P4 I ruined it, so I moved all my parts into this AMD desktop and haven't reformatted/reinstalled anything. Could that cause this? Thanks.