Hi,
I've got a "my documents" backup that runs every night. It usually fails with the quoted error.
I've already read and followed:
http://seer.entsupport.symantec.com/docs/301488.htm
Following those steps only helps temporarily, and the problem resumes the following backup.
I'm using BESR desktop edition V 8.5.5.33937 on XP sp3.
regards,
Avner