Gnome working only as root

I have installed x86_64 opensuse 12.3 and nvidia drivers with it (x11-video-nvidiaG02).
When I try to login as user, I see wallpaper for a few seconds, then black screen with mouse cursor replaces it.
There are no clues except the fact that everything works perfectly if I login as root.

Is there any way to fix it?
P.s. my videocard is:

01:00.0 VGA compatible controller: NVIDIA Corporation GK107 [GeForce GT 640] (rev a1)

Add your user to “video” group.

Thank you! It fixed everything.