I might be wrong, but I seem to remember installing x64 not so long again and not having problems with loading most machines. The 64-32 bit bridge was working well I thought. Are there in fact quite a lot of machines (including those list above) which won't load at all in x64, or is there something wrong with my particular install? It won't be the first time my memory has let me down

The other thing I notice is that the miditracker, for example only shows as "Zephod MidiTra" in the machine search side panel.
If lots of machines don't work then is there a list of those which people think do work anywhere? I can't see any threads on the new forum that might have such a thing, but perhaps one was running in the church of old?