DX 16652 Error when attempting to delete an extended drive.

Greetings all,

I get this error when trying to delete an extended drive.

XERR_MEDIA_POOL_INVALID_APPLICATION (16652)

"Media pools may only be deleted by applications that own them."

There are no folders or media groups.  Also, there are no allocated tapes to the drive.   Any thoughts?

Thanks in advance.

Brian