Yamaha PSS-790
Yamaha pss-790 anyone know anything about it? I have just bought a s/h one for £50.00. It seems to work ok but doen't play the right instruments from my pc. S/ware is, Magix stud6, Evolution bundled with Ekeys 49, Sonar5 ( demo, love it can't afford it) Magix Notataion 2. Ihave downloaded the manual from Yamaha nice people) but I cannot get my head round much of the MIDI stuff.