The Kore controller is not a requirement to use the program. It is, however, a stellar piece of gear for the money and its immediately integrated control surface. I also use an m-audio controller (axiom 61 to be exact).
If you could answer these questions, perhaps I can help you.
-Are you using the USB cable out of your controller directly into your computer?
-Directly under your input source (the instrument you selected) you will see two tabs; one for audio and one for midi. After clicking the midi tab you will see a drop down box that tells the program where your midi messages are coming from. Is "all" selected?
- You may also want to make sure that your systems audio preferences is assigned to the appropriate device, i.e. your interface, line-in, etc. Have you checked that?
-Have you checked the File>audio and midi settings>midi from Kore's menu? You may want to make sure that your controller is listed and that you have your input and output status to on.
I, too, had this issue when I first started using the software. Once you get rockin' it is really sweet. You should also check out the Kore tutorial here at macprovideo. [url]http://www.macprovideo.com/tutorial/nativeinstruments101[/url]
It's a really fabulous bit of education. Scott Freiman is an awesome trainer and he did an excellent job explaining everything. You will be blown away!
I hope this helps, please let me know!!!