Do you happen to be running BIAB on Vista? I also encounter weird non-scrolling issues with the chord sheet when I run my UltraPak HD on my wife's Vista laptop. On my old XP laptop and XP desktop there are no problems. In Vista I often find the cursor jumps back to the top of the chord sheet instead of scrolling down and the screen becomes garbled or overwritten. I would resize the window with the mouse to force a redraw of the screen. I tried changing my Vista display Theme to "windows classic" and I think it may have fixed it but I can't recall right now since I don't normally use that laptop.

Ed