No, there is nothing external involved, just the midi triggering for all synths that came with my copy (since the upgrade) and I know it's not any thing wrong with my sequencing, becuase the glitch is retroactive, and shows up in all my old files (that used to work fine). I know that the notes arnt stretching beyond the region, becuase if I select a region and cycle, it will play the note on the second pass.