Same for me. The fix was to comment out the line for the theme (in my case Glossy) in the .gtkrc-2.0 file. GAP would then close.
-- gnome-appearance-properties hogs processor even after close https://bugs.launchpad.net/bugs/147045 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs