@MODS: Could this thread be moved to bugs?
I've just complete reinstalled backtrack from CD, did apt-get update && apt-get upgrade (both in console, not X).
Afterwards rebooted just to be very sure everything was working, started X, killed X, rebooted again and did (like the CUDA manual of purehate says) apt-get install nvidia-driver.
After the driver is installed I'm getting the Fatal server error: no screens found.
I can't imagine I'm the only one with this, especially since I just did a clean install.
I did a dpkg-reconfigure xserver-xorg and my X works again, but no NVidia splash screen, so what could this be?
I have the old config in case anyone wants to take a peek.
PS: Sorry for replying to my own post, but I didn't know an other way to get your attention.