From a new project (BIAB-2012) I create a few chords, no lead in or anything. Sometimes when I playback I see the piano keys flashing and the cursor moving for two full measures before the sound starts at measure one. Display is ahead of the sound by 2 bars. Sometimes it plays back normal. Regardless if I double click bar 1, space bar, or F4.
Any guesses?

This also happened with my old BIAB-2007 that I just reinstalled after several years. I thought it was a WIN7 conflict with old software which is why I upgraded to 2012 yesterday. Same thing which is about 40% of the time.

I use an external A/D converter for my sound card (Focusrite Saffire Pro40) if that matters (ASIO).