When joining a computer to the domain, sometimes the error message (paraphrasing) "Unable to join to domain- this computer may have been created with different credentials, so please check those..." Something to that effect. Usually I have no trouble joining newly-imaged machines to the domain...any ideas? We join computers with our CAC cards, hence our detailed credentials are part of the process.
Follow up: thanks for the answers...after doing a LOT of digging, it turns out that the computers had been deleted already from the domain; I had to go in and create them again as if brand new- weird, 'cause they weren't on the domain very long to start with. New sys admins are messing with policies! So, wa-la, upon creation, they joined just fine. The error message was very misleading though! DUHHHH...sorry to put out the question earlier than I should have.