After days of trying to fix the same (I think) problem, I stumbled on a fix:
Click on the address book icon.
The first line in the box shows two choices: Search 'Name only' or 'More columns".
Make sure the 'Name only' button is selected.
Mine was on the 'More columns' selection. I don't know how it got there, but as soon as I selected 'Name only', the box was populated.
Hope this works for you!
wow thanks, had no clue it was so simple, what a waste of time!