I had this three times until now on hardy. The first two times without compiz, today with compiz. It always happened when I was editing an email in Thunderbird, everytime the cursor-left key got stuck, and simultaneously the Control key (when opening a terminal, D closes it like CTRL-D). It always started when I was marking some text with the keyboard (CTRL+Shift+Cursor to mark whole blocks).
I had this three times until now on hardy. The first two times without compiz, today with compiz. It always happened when I was editing an email in Thunderbird, everytime the cursor-left key got stuck, and simultaneously the Control key (when opening a terminal, D closes it like CTRL-D). It always started when I was marking some text with the keyboard (CTRL+Shift+Cursor to mark whole blocks).
Ciao
Martin