Like many Ubuntu users I'm using Compiz Desktop Effects with Gnome. However since Ubuntu 10.10 I've noticed that the zoom effect on my drop down menus i.e. The gnome menu bar have a flicking thin white border when they are opened. It appears very briefly and flickers each time a drop down menu is opened.
I can't remember this happening on Ubuntu 10.04 and it doesn't seem to be theme specific, as I tried it on Ambiance and Radiance and still see the flicking white border.
I'm using the nvidia-current proprietary driver enabled through Additional Drivers menu.
Thanks for any help on the matter!