This is a puzzler, I really dont know whats causing it (see screenshot)
I have added the user to full access to her own mailbox, I have run a test of the PST and came back with errors but fixed them all, it starts the archive but gives up very very quickly (a 2gb mailbox and does about 4mb of it!)
Im stumpt! No idea how to proceed now to be honest! Anybody come across this before?