5 computers on a peer-to-peer network, a Vista computer has shared folders. Everyone has access to one shared folder, no problems on any of the other 4 computer - three Windows 7 and one Vista. Another folder is not open to everyone, it has 3 people with full permission (co-owners) - UserA (Windows 7), UserB (Vista), UserC (Windows 7). UserA and UserB have no problems, UserC cannot get into the shared folder (no permissions). I've set UserC up the exact same way - they are an administrator on the computer that has the shared folder, all the users have the same password. I've checked and double-checked everything I can think of, compared against to other Windows 7 user and computer. The only thing different about this setup is that when I originally setup the user I entered the user name as L accidentally, then went in and renamed the user to Laura. The profile is c:\users\L but I log into the computer as Laura. I did try adding "L" as a user, that didn't work either. I'm stumped.