new Nvidia drivers, now Blender won't start

I updated my nVidia drivers to 77.72 to get CS:S to work, now none of the 3 versions of Blender I have installed will start up.

All I get is the console window (with just the Python start msg) and a big black window where Blender should be.

Is anyone else having this problem?

Fixed. It seems my Anti-aliasing settings were stopping it.

I also tweaked the number of colours in my display. Seems to be fixed now.

roll back your drivers