Comment 58 for bug 709461

I have the same problem.. it happens only with compiz. Metacity works fine. I run gnome desktop. The cursor turns into a pointer and ignores clicks, you can still type in the current window but alt + tab doesn´t work. I do a "restart gdm" via ctrl + alt + f2 -> login -> sudo when it happens.. Maybe a Dump of the compiz process would be usefull?