ds1 AND Ableton 9, buggy

Hey guys,

Having some problems with my new DS1. I'm on Win7 and latest Live 9. I'm trying to map faders to volume sliders (works), but when I try to map top row of knobs to filter cuttoffs, the midi info flips from 1/1 to 1/41 as I turn the knob (?), then when I try to map the next channel, Ableton says it conflicts with a previous midi mapping and erases the channel I just mapped. I've updated the firmware but no joy. Really frustrated but eager to get it to work...

Any ideas,

Bill