Ah, yes, get_prop 49 shows 32768, 32764 and 2603 - but, and I may have missed this somewhere, whenever CHDK starts up on the 940, it is in playback mode. Is that a feature of this camera (I can put it in record mode by hitting shutter to stop script, Alt to drop chdk menu, half press to go to record, alt to bring chdk back and full shutter to restart script. I've also found that holding the power button for a second when turning on, brings out the lens.
ok, more tests.