I upgraded from Ubuntu 12.04 to Ubuntu 12.10. Everything is fine up to and including log-in. After log-in, I can't see the side or top panels on my desktop. I've tried various suggestions from people with the same problem but no success.
I have a Sony Vaio laptop, model Z590c with a nVidia GeForce 9300 m GS video card. I don't think I used any nVidia drivers in Ubuntu 12.04 because of some video issues.
Any suggestions please?