Contacts List Collapsed

[SAFVet]

Adium 1.4.4 - on a new MacBook Pro, 10.7.x, the Contacts list collapsed and was stuck to the top of the screen. What remains is the Contacts list window header bar and the Tool Bar - nothing below this (no contacts visible). Can't figure out which if any prefs affect this display.

Thanks.

[SAFVet]

Update: tried creating new prefs and deleting and reinstalling Adium - no change. The config of the Contacts display must be stored somewhere....???

UPDATE 2: installed Adium 1.5 RC1 - still same behavior...