BHOManager Class add-on issue

I'm using UFT 12.02 Build 3002 on Windows 7 Enterprise.

I have many scripts written to automate IE 11

Today I am getting the following error when yesterday I was not:

The UFT Browser Helper Object is required for this step. Make sure BHOManager Class add-on is enabled in Internet Explorer

I've checked and the add-in is enabled.

I'm stumped...and unable to run my scripts.  Any suggestions?

Thanks!

Morgan