Problem with display of RadMenu within a RadPanelBar

[Boris]

I have a RadMenu within a RadPanelBar.  

(The actual arrangement is RadPanelBar-Items-RadPanelItem-ContentTemplate and then a set of Bootstrapped Divs containing various controls.)

The problem is that, unlike the RadComboBoxes within the RadPanelBar, the RadMenu will not expand outside the RadPanelBar area.  Much of the fairly long menu is not visible and not accessible.  

Suggestions?

[Boris]

I have absolutely no way to explain this but after coming to work this morning and restarting the program the RadMenu suddenly started behaving properly.  Perhaps it was just a matter of setting the z-index to a high value although I could have sworn I did that long before quitting time yesterday.