me too.
both the 2D and the 3D desktop sessions run fine before installing 295.40
after rebooting the 2D session still works but when attempting a 3D desktop session the desktop does not load correctly leaving the user with no way to open any applications except via any short cuts that happen to be on the desktop.
Linux-x86_64
GeForce 6150SE nForce 430 (GPU 0)
NVIDIA Driver Version: 295.40
me too.
both the 2D and the 3D desktop sessions run fine before installing 295.40
after rebooting the 2D session still works but when attempting a 3D desktop session the desktop does not load correctly leaving the user with no way to open any applications except via any short cuts that happen to be on the desktop.