Mal I looked up your sound card it stopped support at windows vista. It may work with win 7 for most programs, it might also have driver issue.

My last interface was a Tascam US-800 it was supported up through Vista and I never could get it stable on win7 pro. It may be something else but since I upgraded to an interface with stable win 7 drives everything works smoothly.

The question is why is RB shakes, and not BiaB? I have alway found BiaB to be happy on just about any system. RB requires seemingly more resources.

HP Win 11 12 gig ram, Mac mini with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.