Q1: I'm not getting any sound from my HDMI sources.
A1: The HDMI inputs support uncompressed standard and high-definition digital video formats and PCM digital stereo audio. Please change source device to "PCM-Stereo audio".
Q2: The TV is not showing a 1080P picture in the TV information box.
A2: The television will show the resolution of the source device being received into the TV. Example: If the TV shows a 480P signal on the info screen, the video source is outputting a 480P signal. There are very few source devices other than Blu-ray players that are outputting a 1080P signal at this time.
Q3: On my DLP television, there is no picture and there is a red lamp light that is continuously on.
A3: You probably need to order a new lamp. Please see your Owners Guide for ordering information and replacement instructions.You can also Call the Mitsubishi parts dept @ 800-553-7278 also you can click on this link http://www.mitsuparts.com/