whenever i try to watch recorded programs, usually in hd, i get bad audio droputs throughout the programs. i'm not sure if it's dropped when recording or dropped during playback. it's very annoying thought, as it doesnt happen when i am watching the program, only when viewing it after it's been recorded. i contacted my content provier (who supplied the tuner/dvr) and they said it's because i'm watching one program while recording another. i thought that was the whole point of the dual tuner and dvr on the same box? the model for the box is DCT6412 anyone have any ideas on what would cause this?