We have a Windows 2003 domain. The users Roaming Profiles and Home Folders reside on a network share. Their 'My Documents' are redirected to their Home Folder on the network share using Folder Redirection in a GPO.
When users log on to any XP machine - they can access their My Documents with no problems.
When the same users log onto machines running Windows 7 and try to access Desktop\Home Folder\My Documents they get a.. 'This operation has been cancelled due to restrictions in effect on this computer' error message.