Running V9.5 and all has been well. No new software, no changes to anything else but all of a sudden I can't get my Address Books to open. I navigate to the location of the AB, click open, the hourglass appears for a few seconds and then nothing. Once I got a message about a "Bad" database. How can I repair it? I've even tried to open a copy that was backed up last night.

I didn't get the bad database error, however I have had the databases not opening problem.

To fix it, I first opened the database as administrator which correctly created the database_MAS odbc entry in system for me.

Once that entry was created I was able to open the database as a normal user.