One other thing.  After I repopulated the Home Base, I didn't yet have all of my EF acknowledgments, and all returns looked as if they hadn't been filed yet.  I solved this by highlighting all returns in the EF screen, then:

1.  Clicking on E-File;

2.  Clicking on Electronic Filing; and

3.  Clicking on Update Acknowledgment Status of Selected Returns/Extensions/Payments.

And voila, all of my e-filing statuses are now back up to date.