Comment 4 for bug 109740

I am facing similar problems as well. I have a limited keyboard functionality, mouse pointer moves but does not respond to any clicks. Sometimes by right clicking several times at several different places on the screen, i get back the functionality only for sometime. No specific "similarity" in scenarios when reproducing!
But yes, most of the times firefox was running. But even after closing firefox, this lock up re-appeared.

I am using Ubuntu 7.10 with latest updates as of today.