Doesn't play with compact menu 2 Rated 5 out of 5 stars

I experienced a glitch after the recent update of "Compact Menu 2". With version 4.3.0a1 of this add-on, the sub-menu windows just flashed and disappeared. After re-installing "Compact Menu 2" and customizing the menu bar, functionality is back. Thanks for the good work!

This review is for a previous version of the add-on (1.1). 

I have tested with Compact Menu 2 4.3.1 in Firefox 10 but cannot reproduce the problem you mentioned. Please post the screen-shot and description of the problem here if you would like to have a further discussion:
http://forums.mozillazine.org/viewtopic.php?f=48&t=2308949