Can't use KDE and Gnome anymore
I've recently downloaded and installed the newest OpenGL accelerated video drivers for my nvidia gforce card. After this, I opened up X and started blackbox, to test q3demo. It ran perfectly, with great performance. I then though it was ok to leave blackbox and start a gnome session, but it didn't happen... X just dropeed a confusing error msg and left me in the terminal.
Now, neither Gnome nor KDE are starting with X. Even worse: on blackbox itself, I can't run any Gnome or KDE apps - tried opening mozilla and konqueror, and both failed with the same error msg.