Possible Duplicate:
Desktop forgets theme?
I reinstalled my Ubuntu box with 10.10 (after my dabbing of 11.04 turns out to be a futile experience). The box is clean. I install the typical packages (Google Chrome, Dropbox, build-essentials, ...).
However, now whenever I login into GNOME. The GNOME panels and decorations look weird. They don't like they have the ambience theme on. Even if I choose the Ambience theme of Ubuntu, the theme is not applied.
Currently my desktop looks very ugly. All I want is my default Ubuntu looks back.
Try to use another window manager, like emerald.
Type
sudo apt-get install emerald
to install the emerald window manager.After installing it type
emerald --replace
to replace your current window manager.I hope this helped you, Daniel