User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.11) Gecko/20050728 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.11) Gecko/20050728 Select Addresses Dialog doesn't remember all columns selected with the widget; in particular, Organization and Home Phone. Reproducible: Always Steps to Reproduce: 1. Click Address from Compose dialog to open Select Address dialog 2. Click the column widget, then click all other columns. 3. Click cancel, then click Address again. When you click the widget, Organization and Work Phone are no longer checked and those columns are not present. At first, I thought it was not remembering ANY added columns because I was only interested in Organization! As a work around, I'll move the info stored in Organization field to Department field.
This WFM in TB version 1.5 (20051201). I think you will get the same results with the newer version. BTW, this is called contacts sidebar aka F4, found under command menu item "view"