DPM 2010 does not allow to restore a database to a file share

Hi everybody,

I've a customer which usees DPM 2010 and Exchange 2010 SP1 is not able to browse with DPM console to the mailboxlevel of one database. There are other databases where it's possible to browse to mailboxlevel. Therefore it's not possible to restore this database to a file share (option is greyed out)

Any idea ?

Best regards

Max