A simple SharePoint 2010 installation which uses Forms-based authentication (its an extranet) via MSSQL/.Net with a site that contains a document library fails to show up in the Favorites list of the Save As dialogue in any Office application.
Things I've checked/tried:
1) My Sites, Content and Profile are all working for the user
2) Removing and re-adding the library via 'Add/Remove/Manage SharePoint Sites' in the Library->Connect to Office button within the library
3) Cleaning out registry keys
and then repeating #2 above
Note that it is possible to open from and save to the document library from within an Office application using the correct URL explicitly, it's just that the site never shows up in the Open/Save dialogues.
Is this due to the fact I'm using Forms-based authentication? If so, how to get around it?
What else should I be checking to resolve this?