Matthew, I thought of that -we'd just "trick" all the applications (AC included) into thinking the same machine were there.
But we had a transition period in which we needed both machines active and on the network together. Probably could've thought my way out of that, too, but i didn't.
So, we're manually re-linking libraries. Not a tragedy, just a stutter at the start of each opening of a project that hasn't been updated. We're a small shop, so our Active list is 10-20, not 100-200, so it's not so bad...
thanks, all!
andrew