Hi ablwat,
My problem returned last night also.
My neighbor gave me instructions to do the repair again, this time through the Avast Menu, and it worked.
From the email he sent me;
"My Avast passwords window screwed up again Sunday night. This time I went to Avast Menu, Settings, Troubleshooting, Repair App. It repaired the window view just like before. It is a little annoying that it continues to require repair but at least it's easy to repair."