Hi Frank,
I need to verify that you are running the 64bit version of the RALUS agent. I want to make sure you haven't installed the 32bit version. Would you be able to uninstall RALUS from the system using the steps in the Admin Guide on page 952. Once completely uninstalled, copy the RALUS64 directory from the RALUS iso you downloaded from our website. If you did it from CD, copy it from there instead. Then go through the same steps you did for installing it before, and run your backups.
Let me know if you still experience the same issue.
Thanks.