(Linux mint 12, 64 bit)
Sometimes, when I alt-tab, the window changer remains in place. All the applications freeze too, sometimes, though some part of the GUI still remains responsive (e.g. I can right click on desktop and get a menu, but apps are unresponsive to clicking).
I tried enable/disabling Alt Tab shell extension but problem persists.
Anyone else having this issue?
Suggestions?
Thanks in advance.

