I'm using Ubuntu 12.04 with Skype. When I use skype to call, Skype seems to 'steal' my mouse clicks: I can't click on anything anymore, on the entire desktop. Also, the 'alt+tab' short-cut doesn't work anymore to switch to another application. The only thing I can do is ctrl+alt+delete and 'tab' to the 'log out' button.
After some minutes it seems to get 'unstuck' and I can do some things, but then it locks up again.
I have this with skype 4.0, as well as with Skype 2.2 (I tried to go back to a really old version to see if that also had the problem).
This problem only appeared after I upgraded to Ubuntu 12.04. I tried to reinstall everything from scratch, but the problem persists.
Is anybody experiencing the same kind of problem? I only have this problem with Skype. all the rest (Virtual box, etc. seems to work fine).