Hello ... I recently purchased a modified Pioneer 563A. On every PAL title I own, there seems to be a strange jerkiness that is really noticeable with any kind of motion. It seems to occur about four times a second, which makes any of these discs very difficult to watch. I've owned three other region-free players in the past (Philips DVP320F, GE 1101P, and even a Raite 715AV) and none of them had this problem ... not even the lowly Raite! If anyone has any ideas or helpful comments, I would greatly appreciate it. Thanks!