I recently switched to Ubuntu 11.10 from Windows. The panel has been acting really weird lately. What happens is when I click on sound icon to change volume, the menu for Bluetooth connectivity pops up. When I try to hover over the popped up menu, the latter disappears the moment I move my mouse. It is just not one icon that has been troubling me. When I click on network icon in the panel, it pops-up the menu for Chat and then the popped-up Chat menu just disappears as soon as there is a movement of the mouse. I hope I was able to explain my situation. I am sure you must be aware of this issue. Please advise. Thanks.