In Real Band, look at the menu items up top, hit Action>Send message>GM. What that means is you're telling RB to send a GM reset. I don't have the wording exactly right but you should see it. After that, all my files play correctly but when you close/reopen you have to do it again. Others have said they've had to do that for years but I don't remember doing that under XP but I'm also changing stuff around a lot so I can't remember exactly what I had set up over a year ago.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.