I know what you mean about the sound. I sent mine back more than a week ago, and I really miss it. I'm still waiting for the Amazon vendor to send me a replacement. Even though I could do a lot worse than the DX90 I'm using as a backup. It would be great if the touchscreen problem can be fixed with a firmware update. However, I still feel a lot better that the vendor will be sending me a new unit. It means starting burn-in all over again, but that's something I can live with. Thanks for the update, Paul!