Odd boot problem (Xubuntu, gutsy)

[Mutant Corn]

So I've put Xubuntu(gutsy) on my computer, and after I got through the initial torrent of updates, I restarted.I got an error message upon reboot telling me that I wasn't allowed to access the system configuration, and until I restarted again the (2ghz dual core) cpu was hovering at 60-80%, and the desktop would not show up. The first two problems went away with another rebbot, but I still have the problem in the picture. The CPU is running fine now.

edit: if it helps any, the computer was interrupted during an update session. I started it again and finished the update, which was what prompted the restart mentioned above.

 

[_-..zKiLLA..-_]

reinstall is all i can think of

 

[Mutant Corn]

hmm...

...can I reinstall the gui without losing the rest of my data?