Ok, you like Compiz desktop effect with its cool features such as 3D desktop, wobbly effect, etc. Then you play around to explore more features you want to apply. Suddenly your desktop messed up, such as your mouse behave strange, you can't click the menu for instance. Don't get nervous, relax. You tried uninstall Compiz and clean install it but still no luck. Take deep breath.
This tip is a special guide if you experience the same problem with me. After clicking here and there setting up your Compiz, then your mouse seem behaves abnormal, it won't click the menu. It happened to me after I enable "window move" feature by setting a particular key binding (I didn't remember what keys I selected). After trying removing then reinstalling the Compiz, I came up an idea to click the menu with combination between "shift" button and mouse click. It worked. So then I setup my Compiz again and click on "window move", I set the key binding to its default and tha da, it's back to normal again.
So if you experience anything similar like that, don't get panic, try all possible options.
Good luck.
