I have one user who is unable to map a drive to one specific folder on a W7 PC
If I log the user into another PC we can map the drive so it's not a permissions issue on the destination folder.
If when mapping the drive I select "Connect using different credentials" it throws up the same error saying you don't have permission before even displaying the box to enter the credentials I wish to connect with.
If I logon as any other user who has access I get the same error so it must be related to this PC but unable to identify what.