i have never used midi before. i bought an m-audio o2 midi controller thinking it was basically a keyboard. obviously i was wrong!! i have since learned that you have to program the sounds to it. but how in the heck do you do this!!! where do i get them from?? im using cubase sx3, and when i plug it in...no sound!!! when im just in windows...no sound!! the instructions included are vague at best and set up for someone who has probably used one before. can anyone help, please!! i have had it for 2 months now and have yet to ever use it!! thank you!!