So I still get these apparently random drops in connectivity/transmission/reception of keypresses.
But when this happens - it now seems to me that the connection has somehow gone to sleep, and if I tap the keys a bunch of times (let's say 10 times) the communication between the Softstep and Ableton on a Win 7 machine seems to come alive again. A temp fix really if I have loads of mad fx blasting away and I suddenly can't switch them off when changing to another part in a song, for example.
Weird. Anyway I can't point to the Softstep on this of course, but just a heads up.
I have made sure that all USB connections have sleepmode disabled, power settings set to never dim screen, turn off HD etc etc.
Maybe it is an Ableton glitch or Windows.
Love the Softstep in that I can put it in my gigbag for rehearsals and the programming is off the scale but at this point I would only recommend it with a caveat of "you need to check it out on your system".