I have a Casio CDP-100 keyboard that I’ve been used with Cubase Artist 7.5 now for a few months with no problems (hooked up with a USB to MIDI device). All of a sudden today I can’t seem to get any MIDI activity of any kind. To my knowledge, I haven’t changed any settings or anything like that so I’m completely clueless as to what’s gone wrong. The keyboard itself looks fine and plays as normal from its built-in speakers. Can anybody help? Many thanks!