I have been able to share files among Vista, XP and Ubuntu boxes on a home wired network. Recently I cannot access Ubuntu files from the two Windows boxes. I get a message saying "the account is not authorized to log in from this station". I can access the shared Windows files from Ubuntu. (804) I do not have passwords activated for the Windows boxes. Also I noticed that when I first launch Evolution and click to download mail I get a dialog box about a key ring. I then type in my Ubuntu password and mail is then downloaded.
What setting could I have messed up to have this problem?