Right click menu not disappearing

[osiris]

More ajax related then zimbra, but giving it a go. Every so often when users right click on an e-mail or something the menu gets stuck in the foreground, even if the user clicks on an item on the menu or outside the menu its stuck in the foreground. Anyone else experienced this and know a solution?

[mmorse]

Please add your version (zmcontrol -v) & browser versions tested in as well to Bug 24170 - Context menu(which appears on right click) does not disappear