I'm having trouble using any of the 71.* and 75.* drivers that have been coming out. I've uninstalled my current Forceware drivers correctly, as explained here in the forums, then I tried installing the newest 75.90 drivers to test them out. Installation goes okay and the computer starts up without any visual problems... but when I boot up Half-Life 2, the video keeps stopping every couple of seconds, taking the sound and the mouse with it, then suddenly SNAPS back to life for another couple seconds before stalling again. I also see this sort of behavior when I try to run Need For Speed Underground 2. I'm not sure what the issue is. The card isn't overclocked or overheating, and neither is the processor. Everything is running at the default speeds. I am running an Athlon 64 3400+ with 1gig of Dual-DDR400 RAM. (PC3200) and my video card is a Geforce 6800 GT. Has anyone else seen this issue or know how to resolve it?