First question, is this tape drive supported by Symantec? We have it installed in an IBM server running Windows 2003 Server STD and Backup Exec V10.d. Backup Exec sees the drive and will inventory the tape ( IBM part number 71P9183 - DLT-V4 160/320 GB tape cartridge ). We have made sure it not write protected. If we try to erase ( quick or long ) the tape, label the tape or back up to the tape, the operation fails. Most with an incorrect function message. Has anyone made this combination work? If so, how. We have a second server to stage that will have the same combination of equipment. Any assistance would be greatly appreciated.