I had an issue with the current nvidia drivers as well.  It seemed to be 
missing libs.  Couldn't open settings.  A switch to stable solved all those 
issues.  

I might be alone here, but I've always had issues Nvidia in Linux.  Once 
upon a time they were the only ones that worked, but they still sucked.  
Mehbe I should just switch back to a 3dFX card.