Got it!!!!! Long story short, I had done what I thought was a full uninstall, but it turns out I missed a step, so MEGA thanks to Chuck for the help. In the end, dealing with the %appdata& folder for both Sonar (got it opening again) AND Maschine (got it acting like a proper MIDI controller) fixed both the issues I was having. So I not only can start using Sonar again for all my mixing and recording clients (does happy dance), but I can start writing new tunes on Maschine as a MIDI controller for my drums.