O> In my case I would like to adopt the free nv drivers and can't get to > reinstall them again. Has anybody done this sucessfully?... Google > doesn't seen to help here... well, depending if you did make debian packages or not it differs: debian packages are realtivly easy to deinstall... otherwise: you wil have to reinstall xfree86 I think(or completly forget opengl) to reinstall I did: dpkg-query -lgrep 4.2.1 and then apt-get install --reinstall the listed xfree86 packages
ps: there may be better ways...its just how I did it... yours, Albert Dengg

