I've not experienced the audio dropouts or black screen or lock ups with this box. But it's only had one CE so far. Also it's connected via S-video to an ancient SDTV. Don't know if that has anything to do with it or not. Only issue I've had with trickplay when using MRV is that once in a while the bottom half of the picture doesn't always match what is on the top half for a brief second or two.