(assuming it's anything like my CME UF5...) make sure you've got the most up to date drivers installed, it'll make a difference. after that, for me at least, it was just about getting the right midi settings in your sequencer.
Im starting to think this thing might be knackered.
Whenever i turn it on, different things happen, either nearly everything lights up, only a few things light up, or nothing lights up. And nothing i have tried seems to make it respond at all