I get this too, so any help would be appreciated...
debian 3.0 kernel 2.4.18-bf2.4
geforce 2 mx 400
lg studioworks 77m monitor
it's an added pain because i have linux boot straight into kdm, so i can't even get to a console to take off the nvidia drivers. i'm having to run windows safemode just to get on this forum!
additionally: it doesn't seem to work under windows either, just black screen on startup followed by more black screen...