Of course I only use my PC for midis when I want to send them somewhere. Everything else I do on my keyboards
Because you have a beast keyboard...

I only see the SYXG50 available for download on their site... But anyways, I'm assuming my soundcard can handle all 480 sounds... the computer I'm using is about 2 months old, so it should work. I don't think I have the actual Yamaha-XG compatible hardware in my computer (it's a laptop, so it's minimalisic), but I suppose I can try their trial version (of the 50, of course). Let's give it a shot...