In the Notation tool, the notes I put onto the staff don't play. Assuming that this is a MIDI Drivers issue, here is a shot of my MIDI Drive options. What am I missing?

Umm, let me explain better. As I'm entering them, they're not playing. They'll play once I Generate and Play. [img:center]https://photos.app.goo.gl/pFGTZnx8cYKZqGca7[/img]

Which track are you using when adding the notes? It should be the melodist or soloist track, and needs to have a MIDI instrument patch applied (the track color should be yellow). Can you check those items?

Yeah, there doesn't seem to be anything wrong with your MIDI settings, assuming you're able to play MIDI in BIAB. Most likely it's as VideoTrack says - the track needs to be a MIDI track, and cannot be a RealTrack.

VideoTrack - MIDI data can be notated on any MIDI track, doesn't have to be the Soloist or Melody tracks, though you're right that this has generally been the place to put them in the past. It can even be on the new Utility Tracks now.

Melody track. It's in yellow, but note is changed to "Guitar 2", I guess because of the MIDI intrument. There's a "click" when I enter the note, but no note.