I haven't been on the forum in ages as I have been off work on maternity leave for almost a year and I've almost forgotten how to use a computer!
Anyway, I switched on my home PC which I have barely used in years and decided to upgrade my installation of Ubuntu which was 8.04 or 8.10, which ever was the LTS version.
I made sure it was up to date then, upgraded one at a time until I got to 12.04. The last upgrade I had to do via the recovery console as the new interface didn't seem to be working - unity I take it.
Anyway, it doesn't work on 12.04 either, but I don't know how to get to the bottom of the issue to begin to understand how to fix it.
I see the background, in the last version I installed I could see a menu bar on the top, but not the usual Ubuntu bar, in 12.04 there is nothing up there at all. In neither version could I see a quick launch menu, even if I hold the mouse pointer at the side. I have logged in in recovery mode and tried the "unity --reset" command, only to have it seg fault after saying "The current CPU does not support SSE".
The graphics card is a GeForce 6200, I know there has been a bug report to do with running unity in 3D with this card, but for me it doesn't work in 2D either. If I log in in 2D mode, Compiz crashes.
I can't open a terminal window unless I log in in recovery mode! I'd appreciate a bit of help in working out how to get a working desktop - even if it is the classic style.