Ok, I've fixed the problem for myself, but probably not the bug itself. After a bit of googling, I found that some others were also having the same problem with GNOME. Running this command fixed the issue to an extent:
$ sudo gconf-schemas --register desktop_gnome_interface.schemas The interface schemas were indeed missing, and that fixed the icons issue. I was also unable to launch the Theme manager before that, now I can. I also found out that re-installing the package "libgnome2-common" would make things work, so I did that and it all seems to be fine. Guess I'll close this bug for now, though it might happen to others in future - who knows ;-) ** Changed in: gnome-themes (Ubuntu) Status: Unconfirmed => Rejected -- Theme schemas corrupted or missing https://launchpad.net/bugs/29061 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs