CRM outlook plugin (32b or 64b) not working in Outlook 2010 and Win7

CRM outlook plugin (32b or 64b) not working in Outlook 2010 and Win7

After installing the 64b plugin (while Outlook was closed) and checking the box for COM Add-Ins in Outlook 2010, I see "Load Behavior: Not loaded. A runtime error occurred during the loading of the COM Add-in"

I then uninstalled the 64b plugin and installed the 32b plugin.  Upon checking the box as above, I get the same error.

How can I get this to work?