I have been receiving this error for quite a while and was hoping it would go away after we moved from Arcserve 2000 to Arcserve 9 and rebuilt our Backup Serves. Unfortunately I'm still getting this error with brand new rebuilt servers and even on a new tape library unit. Both servers are Compaq DL380's running Windows 2000 SP3. One server is running 2 TL891 tape librarys and the other is running a new MSL5026 tape library. Any ideas?