Windows 2000 Server, SP4. Running a backup to a sony DDS4 drive, using windows backup utility. It fails to start under scheduler, the backup screen comes up, but the backup fails to run. Running manually, it will start, but asks for a 2nd tape at only 5gb data transferred (this is with a 20/40 tape). This occurs with multiple tapes. All tapes are set to erase and overwrite before each job.