Hi Jason,
As you have tried everything, could you please tell us, which tape drive are you using? what is the name of the tape drive? So that we can check in HCL whether the device configuration that you are using is supported.
You can refer to the following HCL link.
http://seer.support.veritas.com/docs/281669.htm
If the device is not listed in this list you have to install OEM drivers.
Thanks.
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.