My PCLOS

[Jonathan Hutchins]

If it's compiz that's messed up, you should be able to choose a non-compiz
session at login (you may have to start up then log out).  If you have
compiz+gnome, you could try installing kde-desktop (whatever the PCLOS
meta-package is) and that would give you a working alternative.

Unfortunately, both compiz and KDE4 are currently at a stage where this
kind of thing is going to happen.