I've been using Logic 9 for years and am working through my first project in X. I've been working on a project with no problems and then all of a sudden, I'm not able to record when playing in MIDI info. I'm seeing input levels when I play my MIDI keyboard, I'm hearing the instrument I'm playing when I play along with the existing tracks. BUT, when I hit the R key for record or even click on the red circle record button, the record button begins flashing, but never turns solid and I've lost my recording capabilities. I've searched through preferences and the recording options but haven't been able to find what's changed from when I was able to record and now--in the same project. Any suggestions?