hello. i'm using linux mint 11, but i've also had this problem on ubuntu natty and also on the pinguy os based on the same natty. it seems my screen crashes randomly. when it crashes i cand still move the cursor, but i can't click anywhere - it has no effect. also, the music still runs in the background, so i guess it's something graphics related.
i have a dell optiplex gx280 pc with an intel 915g graphics card. i use compiz with effects.
also i've noticed that if i click the menu button in my title bar the window decoration disapears. and also, i've noticed that most of the time the screen crashes when i click on a menu on the panel, or when i click on the calendar on the panel.
any ideas?