Switching OS seems pretty excessive just to fix a graphics bug. :) There are several suggestions here that might be of use - it sounds like what's "locking" Compiz in is Unity, so using a Unity alternative (Gnome [yay!] or downloadable Unity 2D) should allow you to disable Compiz.
If that fails, then the Windows client runs pretty well under Wine, though that's hardly an ideal solution.
If that fails, then the Windows client runs pretty well under Wine, though that's hardly an ideal solution.