Unity menu very slow and unresponsive

I have a HP G62 laptop with Intel Pentium processor and ATI graphics. Since upgrade to Ubuntu 13.10, my Unity menu is very slow and unresponsive. I am using proprietary driver for my graphics

For example, I'm switching between Gimp and Chrome. When I switch to Gimp, I will be stuck with Chrome menu at the top of the screen. It is really annoying and it is just one of many bugs that came up with 13.10.

Any ideas? Should I just revert to default driver?

Solution 1:

This fix for this issue got released on 2013-11-01 (https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1199877/comments/73). Just keep an eye out for gtk+3.0 in the Softare Updates and apply it once it arrives on your machine. I can confirm that this fix solves it for me.