Esri Maps for Office crashing Excel & PowerPoint 2013

[AndyPotts]

I've installed Esri Maps for Office v2.1.2 on my Windows 7 (64bit OS), Office Professional 2013 (x86) laptop.  Each time I open Excel or PowerPoint and click on the "Esri Maps" tab on the ribbon, a message pops up saying:

"Microsoft Excel has stopped working, Windows is checking for a solution to the problem..."

I've unisntalled the Esri Maps for Office product and reinstalled it twice with no effect.

My Windows Updates are centrally manged by our IT dept if that matters.  The most recetn updates were installed on 11/18/2013.

Anybody else run into this?

Thanks,
Andy

[YvonneMaher]

The enriching layer with data freezes.  I have tried with different account names in our online organisation account with no luck. any suggestions?

[ChadFranklin]

I'm running excel 2010. I can see the ESRI add-in when I go to the add-in tab but when I try to uncheck it and re-add it, it says there is no valid add-ins to add. Even though I'm navigating to the same file that is currently added by the program.