Hello, some weeks ago I started to notice how I seem to be getting weird textures when playing games. I've only played World of Warcraft and Age of Conan but the problem is pretty much the same: I'm experiencing that all of a sudden (Might be 10 minutes after playing, hours etc) the textures becomes all weird. In WoW for example, all stuff beneath objects become green with some weird pattern. This can be fixed by simply quitting the game but usually I restart the PC because after this "issue", alt-tabbing goes very slow. It takes like 10 seconds for the game to come to the screen again. Does this sound like a GPU problem or something else, like RAM related? I posted this here because I thought it might be GPU but I don't know very much so I'm sorry if this is "off-topic" My computer: Windows XP Athlon 64 Dual core 4600+ 2GB ram, if I remember correctly, it was 533 mhz (I can't remember if it was 2x1gb or just one stick though) The GPU and PSU is the only thing I've replaced, this was almost a year ago. The gpu is 8800GT and the PSU is at 550W I have no idea about my motherboard though, I don't know how to check that. Some more information: I've tried removing most of the dust in my PC (although the processors part is still quite dusty but I can't remove that with just air) and I'm using the latest DX9 and latest nVidia drivers. I'm most likely virus free, at least the scanners haven't found anything. I'm using SP2 (because the SP3 installer gets stuck at some part) If you're interested in more information, I'll upload HiJackThis and my DxDiag just in case that might be necessary information.