I am also having trouble. When i start X an NVidia splash screen appears, then dissapears, but when the graphical login appears the graphics are screwed up and the computer completely locks up. The mouse wont even move. There are no errors listed in the log file, which i have attached.
3Ddiag doesn't find any problems.
I have an althon 800 with a Leadtek Winfast GeForce 2 MX
Any help appreciated.