I would hazard a guess that it needs to be restored BEFORE you can open the files. It's a backup, not a clone. cjc On 19/08/2008, at 12:46 PM, Donald Grant wrote: > Hi > When I attempt to open my Apple mail account that has been saved to > Time Machine, I get the following message > > " The operation could not be completed" > > An unexpected error occurred error code 10657. > > Anybody out there have an explanation for this. It would seem to > make it impossible to back up Mail. > > Don