I'm having this same issue with my Oxygen 8 v2. The keys trigger but the knobs don't have any effects (at least in the DJ lesson where you program the crossfade button). I've got the keyboard going straight into my Macbook via USB and I'm running the latest OS X...whatever that one is.
Donny
oxygen8 control knobs don't work (Live, OS X)
*bump-dee bump*
just wondering if anyone got this problem sorted out as I am currently experiencing the same thing: Live 7.10, oxygen 8 v2 and OSX 10.5.3
Live is getting midi in...but I simply cannot make it 'see' the knobs and faders on my v2. "dump" is inaccessible, and I've reset the v2 via enigma.
thanks in advance

just wondering if anyone got this problem sorted out as I am currently experiencing the same thing: Live 7.10, oxygen 8 v2 and OSX 10.5.3
Live is getting midi in...but I simply cannot make it 'see' the knobs and faders on my v2. "dump" is inaccessible, and I've reset the v2 via enigma.
thanks in advance
Nevermind, figured it out. If anyone else is having troubles read here:
http://www.ableton.com/forum/viewtopic.php?t=96978
http://www.ableton.com/forum/viewtopic.php?t=96978