Issues with RadMenu navigation drop down

I am having issues with the sitefinity RadMenu.  Leaving out all custom styling for now, Ill start with the basics that we can't get to work.
When I drop in the horizontal nav with drop down choices, it works ok in the sitefinity viewer.   As soon as I click "Preview" or go to the live site, the drop down will not work.  I have tried the mouse over and the click and neither will work even though it works fine in the page templates windows.

Any help is greatly appreciated.

We figured out the issue.

We had rad script manager included on our master page and it must have been throwing everything off.  As soon as we removed it the rollover worked fine