Cannot Backup SQL databases since upgraded to backup exec 2012

Hi,

I have upgraded to BE 2012. Since, a scheduled job fails with the following errors on each SQL database located on a remote server :

Warning: %Database_Name% is a corrupt file. This file cannot verify.

Before upgrading, everything was ok.

I have a valid licence for the "Agent for Applications and Dabases" on the local server. On the remote SQL server, "Symantec Backup Exec Remote Agent for Windows" is installed. I installed it remotely from the local server.

Actually, what is weird is that the scheduled job fails, but when I start the job manually, it completes with no error.

Can you help me ?

Thank you,

Best regards.

Matteo