Unity 4.2.1 VM only with Exhcnage 2003 on separate Win 2003 server. This morning unity running, but not taking any calls either IP or via the Dialogic line card. Rebooted server and Unity now takes calls but not one of the Admin accounts can access the SA. We get the user id/ password / domain prompt, and then we get a second box asking which account name to use. At this point we either get an error about not being able to authenticate, or an account locked message. Real helpful note about contacting the sys admin for help. I am the sys admin and I haven't got a clue as to why Unity decided today to lock out all the admins.