Logon failed. You must log on to Microsoft Exchange to access your address book. Error code: "Unspecified error."

[BHUI]

I used to have no problems with Affixa. But now every time I try to
send from a Microsoft Office 2007 application, I get this error:

* Logon failed. You must log on to Microsoft Exchange to access your
address book. Error code: "Unspecified error." *

Affixa works fine with my other applications (like Adobe Acrobat
reader). It also works if I right-click on a MS office file to send.

I've already reconfirmed that Affixa is the default program for both
"mailto:" and "send mail".

Outlook is installed (but I don't use it), but I tried this regedit
fix just in case:
http://groups.google.com/group/affixa-support/browse_thread/thread/5299e93dd7c55ac8/dd94ae22f5cd3760?lnk=gst&q=office#dd94ae22f5cd3760

I'm running Affixa version 2.2010.12.5. Windows 7 64-bit.

Any help out there?

[BHUI]

FYI, I figured out a solution:

1.  I reverted the program defaults for "mailto" and "send mail" commands to Outlook.

2.  Tested sending a file from MS Word to verify Outlook was handling it.  

3.  Set the program defaults back again to Affixa.

4.  Now the "send mail" from MS Office apps work again -- no more error message.