Thanks again, Dave_Bechtel, for your helpful reply. I finally had some time to work on this screen resolution problem again. By mentioning your SuSE xf86 config files, you gave me a great idea. I have SuSE 8.2 with NVIDIA 3D acceleration working perfectly at 1024x768 on another partition so I used the xf86config files from it. There is not an xf86config-4 in SuSE 8.2 but the xf86config.sax is the exact same thing so I used it to replace my xf86config-4 in knoppix. My NVIDIA card works perfectly at 1024x768 now! Thanks for the great tip.