This may be of use to you:
http://bbs.archlinux.org/viewtopic.php?id=41245
He says what he did was remove everything in his home directory (rm -rf $HOME/.*), but this also removed all his configuration he had done. Not sure what this will do to your system, but it may be worth a try. Might want to just move it to the desktop or something, though, so it's not just gone forever.