After the update to 1.8 my videos have been pretty choppy, no problems before the update, I have not changed any settings. Using a MacBook Pro, 2.8 GHz Intel Core 2 Duo, 8GB of 1067 MHz DDR3 RAM, NVIDIA GeForce 9400M 256 MB graphics card. Any other users have any issues? This could obviously be a Serato issue, but since it is the video playback being affected thought I would ask, no audio issues.