Backing up Users folders on Windows machines

Hi
I hope someone with experience on bacula backups on windows machines
has an answer to this
We need to backup two folders on our test set up, Users folder and
Program Data folder, both are restricted folders in Windows security
architecture
I have set up Bacula FD and SD locally on the windows machines, and
they are running under the System account, but it seems that Bacula
can not access these folders to make  backups, the log entry says:
Could not stat c:/user : ERR=No error (Same message for the "program
data"-folder"
The fact that it is saying No error instead of reporting an access
denied is strange in itself, but I can't imagine any other reason for
failure but perhaps i am mistaken(BTW, the rest of the job finished
correctly)
Has anyone had experience with this or knows why this happens and how
to fix this??

Sincerely /Mehrdad