I tried upgrading my Ubuntu from 11.10 to the new 12.04 and I had to force my computer off because it froze. I thought I had to restart the upgrade process, but apparently it somehow finished upgrading. Unfortunately, now I can't log in.
There is a black terminal-like screen asking for an "Ubuntu Username" and "password". I keep keying in my computer name and password in different ways, but it keeps saying it's invalid.
I don't want to restart my artworks that I worked days on.
How can I get on the new Ubuntu without losing my stuff?
(note my laptop doesn't use f# keys)