Backup Exec 2012 and Incremental Exchange 2003 Issue

Hi all,

when i use backup exec 2012 to do daily incremantal backup for exchange 2003, i got the following error, but actually i have run the full backup twice.

Anyone has some suggestion about this issue?

the backup option for ADFO and exchange options is as below :

In fact, if i disable the AOFO option when backup, the weekly full backup and daily incremantal backup are all successful, but the backup data size for Information Store is zero bytes, i think it's not normal.

Does anyone can help? Thank you all very much.