Can anyone describe their opinions/views/experiences with the sound quality of their HTPC's? I'm currently working on mine and haven't really had the chance to configure my settings to see if they surpass my stand alone dvd player's sound capabilities. Is sound noticeably better/worse? Does anyone have problems with hiss, cracking, digital pass through issues, or anything else. Also, what did you do to fix the problem. It's pretty much a given that picture quality can be drastically improved, but how about audio quality?