this weekend I tried some other modelines (several 1400x1050 and 1600x1200 modes) created with gtf. None of them worked. It's always the same problem: When the NVIDIA-splash-screen (which is displayed correctly!!!) disappears, the screen gets unreadable, because the displayed lines seem to have a wrong length. Amazingly setting the virtual size to 2048x1536 all modes go well.
This is quite frustrating, especially as 1400x1050@85 works with v4191 using exactly the same settings in my XF86Config.
Am I really the only one with this problem?
At least will it be fixed in a future release?