Hi, Bob -
I can't get RealBand to recognize my XMIDI 2x2 (on my XP system, at least) On my Vista machine - same box, dual boot - it works great).
I get the same error message as you. It works fine in BIAB, but not RealBand (or PowerTracks, for that matter).
I would think that if BIAB can see it, then RB/PTPA should be able to.
John
Laptop-HP Omen I7 Win11Pro 32GB 2x2TB, 1x4TB SSD
Desktop-ASUS-I7 Win10Pro 32GB 2x1.5TB, 2x2TB, 1x4TB SATA
BB2025/UMC404HD/Casios/Cakewalk/Reaper/Studio One/MixBus/Notion/Finale/Dorico/Noteworthy/NI/Halion/IK
http://www.sus4chord.com