I've got 6 databases on our principal server. I've scripted the setup to create everything exactly the same for all 6. All are mirrored to the same mirror server and have the same witness. One of the 6 fails with this message when setting the mirror name on the principal. *VERY* little information can be found about this message at microsoft.com and I get no response from online newsgroups either. I can't be the only one experiencing this. Really stuck here. We were supposed to be going on-line with this new configuration by the 15th but we already won't have enough testing time now.. Really stuck on this. Anyone have any ideas?