Are you running AOFO? If so, you should be using Windows VSS? If you are using AOFO, try turning it off and run the backup again. By the way when I have seen this issue, the backups are good and you can restore from it including the Shadow copy file...
Have you run Tools>Wizards>device conf wizard? I would recommend that you download and installed the BUE 12 driver. You will have to install Service Pack 1 first. http://seer.entsupport.symantec.com/docs/302966.htm SP 1 x32 bit server http://seer.e...