Hi - Years ago I used to use a PAB but have been using contacts. I recently upgraded to Win7 from Vista. When importing my Outlook PST files, the contacts in the contacts file won't show in my address book. The box to allow contacts to be used for your address book is greyed out so I can't check it. I cannot add new contacts - get an error message that I need to have a PAB to add new contacts, but of course I can't do that with Outlook 2007. I have uninstalled and re-installed Office, I have set up new profiles (following the instructions on this site), I have run the scnpst.exe, and I can't remember what else. I can't seem to get Outlook to let me check that box and for some reason it is looking for a PAB file. Please help!