[Dave Lang]

I had this problem - it was related to the 'count off' setting of the midi control pane of the transport window. Somehow it got turned on so the thing would wait for two bars before starting to play or record. Of course, if you don't have a click on the session - you don't hear anything and unless you have the transport window up with the midi part included you can't find that setting - or at least I couldn't - try it - feel free to pm me if you get stuck.

Frustrating!!!