when I select sounds within XG works I've noticed A LOT of them have stars beside them, and when I select them there really isn't any change in the voice.. Does yamaha not have a current driver or something for the PSR-550 and XG works?

Squeak
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.