NT BACKUP

I have the following backup script scheduled to run on the my server at night:

ntbackup backup c:\winnt c:\Goldfax_NT DS \\KNSSHPR IS \\KNSSHPR /t /v /b /d “Email server backup”
ntbackup eject

However it seems that the last line (ntbackup eject) does not eject the tape. I have watched the script run and though it backs up fine, and though the eject line runs the tape is never ejected. I tried putting a WAIT command after the backup completes but this didn’t work.

Any ideas why and what I can do?