> Before I used vs. 3.0.1, I used 3.0, in which 1024x768 worked great. So it's
> not a hardware issue. Other thing is, that after installation I could start X
> without having XF86Config in /etc/X11. I haven't been able to locate another
> XF86Config, so my guess is it gets its settings from somewhere else. But
> where?

Look at the X log file to see where it got its configuration.