I have an HP MSL8096 tape library and am using Backup Exec 11d for Windows. All jobs are running correctly. However, when I try to open the Mailslot through the library's control panel, I get a message that says "Library Media Removal Prevented by Host" message. I have tried restarting the software services and will only let me open the mailslot once; after that I get the message again. I read somewhere about a PMR bit that needs to be cleared. Can anyone shed some light on this? Thanks.