Hello,
You could try the following KB articles,
http://support.microsoft.com/default.aspx?scid=kb;en-us;268437
and
http://seer.support.veritas.com/docs/263037.htm
If Seagate Software tape device drivers are installed prior to installing VERITAS tape device drivers, services for the Seagate Software tape device drivers will be left on the operating system and, in addition, the VERITAS tape device drivers are installed. The dually installed device drivers are responsible for the conflict and the error message.
To verify that this is the issue, first check that the VERITAS tape device driver has been installed. Open Control Panel | Devices. Search for the appropriate tape device driver (for example, tratapi-SESFT and tratapi-VRTS)
These drivers will be set to System, and the SESFT driver will be Started. To allow the VERITAS or VRTS driver to start, the SESFT or Seagate Software driver will need to be removed or disabled.
To remove or disable the Seagate Software device drivers, perform the following:
To remove drivers:
1. Open Control Panel | Tape Devices
2. Click the Drivers tab
3. Remove the Seagate Software drivers by selecting the driver and clicking Remove
To disable drivers:
1. Open to Control Panel | Devices
2. Find and select the SESFT device driver
3. Click Startup, and then click Disable
Note: A reboot is needed for the driver change to take effect.
NOTE : If we do not receive your reply within two business days, this post would be marked assumed answeredand would be moved toanswered questions pool.