http://www.youtube.com/watch?v=5xyJkS8XjgA&feature=youtu.be I managed to take a video with what happens on my Ubuntu 12.10 laptop when I play with the volume and hover with the mouse over the slider and when I press Ctrl + Alt + D (show Desktop/minimize all) The real bugs are those in which the panel becomes transparent on the down side, exactly above the volume slider (and not only when that slider appears, but also when brightness slider appears, and when blocking my touchpad applet appears) and when I have a maximized window, more maximized windows or a non maximized window that touches the panel, while I use Ctrl+Alt+D (show Desktop/hide all normal windows). Is there a way to solve this bug? PS: The other bugs are from Record My Desktop. I didn't have the mentioned bugs in ubuntu 12.04, but I like more the graphics in 12.10.