Hello,
Is the device properly detected by Windows through the device manager?
Upgrade to the latest build for Backup exec 10.0 which is 5520 in case you dont have it already. Here is the link for the download:
Title: VERITAS Backup Exec (tm) 10.0 rev. 5520 for Windows Servers Installation Files
http://support.veritas.com/docs/277181
Are you able to run a small backup job on the drive as it seems to be detected but not the tape? Try doing so and test the results.
If the issue persists, do write back with details.
Note : If we do not receive your reply within two business days, this post would be marked ‘assumed answered’ and would be moved to ‘answered questions’ pool.
Regards.