Just bought a new ATI Radeon X1600 PRO (AGP) with 512MB of video memory and installed it all and everything. Now, my desktop occaisionally sports funny coloured lines (which disappear on refresh) and flickering. THAT I could live with, but playing a game that sports 3D graphics and textures will result in funny colored textures and/or occaisional freezing. Most notably, Civilization 4 shows off some tiremark looking streaks across the landscape and models sometimes stretch to edges of screen in comically ugly stretches of texture. Problems always go away on restart of game or refresh, but always build up as gameplay continues.
HELP! I've updated all I could from the ATI site!
2 Problems I may think of are my power supply (250W instead of the recommended 300W), and my monitor, which is a Samsung Syncmaster 750s (which Windows update can't locate anymore drivers for, so I assume it is up to date).