Hi, I have a problem with the video stuttering when running in full screen on 1920x1080 screen. They are videos from a Sanyo Xacti video camera: MP4 H.264/AVC 1920x1080, framerate 59.940, AAC (stereo, 48000 khz) Plays fine in a smaller window, but if window is too large, or full screen, has pauses, ...