I have an M-Audio Axiom first generation keyboard and use FL Studio and only 2 notes play on the whole keyboard. I was playing it, turned it off and came back to it and it just was like this from then on. I ran them through Reason, and they work with that DAW, so it's an FL problem. Any help is greatly appreciated.
EDIT: Actually, I'm not so sure anymore. I reset the FL Settings and it still didn't work.