Hello, forget the timer, it'll do that, doesn't mean it's failing, just inaccurate.
If both have Firewire, biit the old one in Target mode...
This will make the old one appear as a FW drive to the new one & no need to run MA on the old one.
I could not migrate my iMac 7,1 to my new Mac mini because the iMac could not identify the Mac mini.
The Mac mini id'd the iMac fine.
After fumbling with that every which way, I simply migrated from the Time Machine firewire HD that had all the iMac data on it.
So, plug in a HD , fill it from the old computer and migrate from the HD.
Thanks. I ended up just setting up the new machine and then migrating the files manually. Not ideal, but it worked fine. I appreciate the advice and will certainly keep it in mind should I run into this problem in future.
FWIW: I don't think the problem in the original migration problem was with the timer - it only took 40 minutes to migrate all the files from a similarly configured and loaded mini to a new mini that same day (with no time adding to the estimated time remaining). I waited over 3 hours for the second migration to complete and it never did finish up. Judging from other posts out there, the estimated time addition seems to be a symptom of the larger failure of the migration assistant.