I've had my 5040 since the first of december, and another problem with my unit has shown it's ugly head. Yesterday my 5040 stopped sending an audio signal to my tv. When I watch any recorded shows, the video is fine but there is no sound - same result when watching live tv with the 5040 on. When the 5040 is off and I watch TV normally, the sound is fine. Has anyone else had a similar problem, and if so how was it resolved?