Has anyone else noticed this? All of my AVI & mp4 movies that are encoded with 48khz audio (standard sampling rate for video) drift quickly out of sync on playback. The audio will quickly run ahead of the video, getting progressively worse, making a majority of my movies absolutely unwatchable. m4v files seem fine for the most part. 44.1khz audio always works fine. Using Surface 64gb. All movies played off the internal memory. Tried using the stock video app and Multimedia8, same problem. Tried refreshing the whole device, same problem. All updates as of 11/18 are installed.