I have previously used my Yamaha keyboard to input midi data into PT11. I now have a new PC (with Vista) and PT11 is working OK apart from receivng midi data. When I connect the keyboard the red light on the midi cable lights briefly then goes out. PT11 does not seem to receive any data at all from the keyboard. Under options and midi devices there are no input devices listed so I think this must be the problem. Any ideas as to what I can do?

Many thanks

Gram