Backup Exec 2012 Dismounts Exchange during backup and doesnt remount until reboot

Good Afternoon All,

I have a sbs 2003 server with backup exec 2012 fully updated having a few issues when backing up Exchange this has only occured in the past week or so,

While performing the backup Exchange is dismounted and doesnt remount until the server is rebooted,

Any advice appreciated,

Regards

Matt

Erud IT Support