I reverted to Version 1.4.3 and snapshots remember the mac now. A no-connections snapshot doesn't remove all connections, but going to RESTORE in Edit for the Alyseum units clears the connections.
Now though, Midi Translator Pro has closed midi in ports for translators 6, 7 and 8.
I asked Bome about it.
They replied : "Hi, you might want to check if any other MIDI application is running. This is the most common cause of this problem. Check also for possible background applications that might use MIDI ports. In my case, I had installed CopperLAN which insists on taking complete control of all MIDI ports. Once I disabled it, all was well again. See if rebooting your system helps. Good Luck! Steve bome@sniz.biz Independent Bome Programming Specialist Bome Q&A moderator "
I tried turning Midi Translator Pro off and enabling the ports in CopperLan first, but that had no effect.