UI problems (possibly hardware related)

Using the 2.62 official build, suddenly some parts of the ui went blank (buttons disappeared) and I couldn’t select in edit mode. I recently updated Ubuntu 10.10 64bit, so I’m thinking it’s a kernel/gfx card issue. Any ideas?
Nvidia 9600GT is my card. Many thanks

I’m no Ubuntu expert but I heard from a little birdy that there is some kind of driver issue or another with version < 11 or around there, gonna have to do some research on your own though to confirm it >.<