I just installed LinuxMCE RC2 386 on a hybrid system and have been playing around with it. I went into pictures and viewed the flickr pics. There was one I found objectionable so I tried to delete it and the screen has frozen. The mouse will move the cursor around, but can't get it to do anything else. Mouse clicks don't do anything. What do I do next when I get a freeze up like this, other than turning the power off to the computer and restarting it?