Can not create a BackUp Job in Acronis Recovery for MS Exchange (German)

Hello,

as we realized that the Exchange Backups didn't run anynore, we checked the BackUp-Tasks but they were all gone. So we tried to create a new Job which end up in a "Job created succesfully" message but there are still only two cleaning Jobs in the Tasklist.

A restart of the Services didn't help and a restart of the Server didn't help too.
So we updated to the newest Build (239 i think) - no success.
What can we do ?

We're using Windows 2008 with Exchange 2007

And when we create a run-immediately-job we get an Error-message:
Can not run the Task. The System can not find the specified file or registry-key.
in german:
Kann den Task nicht ausführen. Das System kann die spezifizierte Datei oder
den Registry-Eintrag nicht finden.

any Ideas?