-
This has solved my issue with Samba and connecting to a Win 7 box. I suspect this is the same issue here.
http://www.liberiangeek.net/2012/03/how-to-fix-failed-to-retrieve-share-list-from-server-in-ubuntu-12-04-11-10-when-file-sharing-with-windows/
But I really like the Windows Credential manager fix here. Harder to break. -