I was using Ubuntu desktop 10.04. By mistake I had deleted some items from System>Preference>Main menu>Other (some of the unchecked items). After that the windows borders were disappeared & Durring shutdow XUBUNTU screen was appearing instead of Ubuntu.
I searched a lot for the solution and found that the metacity was not running at startup. So I put that in startup which solved the window border problem. Then I upgrade it to 10.10 version. But still durring shutdown XUBUNTU was appearing.
Please tell me how to bring back to UBUNTU without reinstalling the OS?