I had this problem for years, even on LMDE / Debian installs. I had forgotten about this bug report but now realize that since I switched from Gnome to xfce the problem has gone away. I now use xubuntu and add compiz/emerald to it. This makes sense since as I said back in 2011 I'm fairly certain this is an issue related to timing and menu caching which would be specific to gnome.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/665546 Title: Drop and sub menus don't always show up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/665546/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp