My daughter has bought an M-audio keystation 49e; it's a midi keyboard you
can plug into an usb port of a PC.

The problem is that on 2 of the PC's , windows immediatly recognizes the
usb keyboard (and shows it in the device manager), but when I look in one of
the midi applications (I've tried a
couple) under 'devices' the midi keyboard is not available.

On the third PC however everything works well; the device is shown in the
application as well. Unfortunately this one is not my daughters PC and we
can't switch them.

All 3 PC's have windowsxp sp2 (dutch version); the sound cards differ.
Playing midi files works well on all the PC's; connecting usb devices works
well as well.

I hope someone can help me on this, I've run out of ideas.

André