Re: Modeline problem: nvidia driver moved screen to the left
You need to build a modeline from the values you got from xvidtune. For example when you call the modeline 1024x768@85, you need to type that name for the resolution in the display section.
Further I don't recommend using SVGATextmode anymore as it won't work fine with recent cards anymore. Your gf2mx can still be used with it but that is more some sort of "accident" as the algorithm is still quite similar to old cards (read riva128). That screen moving sounds a little familiar to me. A few years ago when I started nvclock, similar problems appeared when nvclock was build using optimizations. Somehow because of that the screen moved a few pixels to the right (this happened when in X).