I recently bought an HDMI cable for my xbox 360 (the new type, i don't know if it has a name but its the one with the touch sensitive power button), and when I plug the cable into the xbox and the tv and then turn them on I get the sound but not the picture. when the HDMI cable is not plugged in the the sound and display is fine. I have tried this with two different HDMI cables and both do the same thing.

Hi,

Sorry to hear about your trouble. You elimanted the cable as a potential problem so that is good. You are left with a couple of options that might be causing the problem.

-Bad HDMI port on the XBOX
-Bad HDMI port on the TV
-Incorrect TV settings

On the TV, you want to make sure you set it to the HDMI input when you are using HDMI, but I assume you already do this and most newer TV's will auto adjust to HDMI when the xbox is turned on. Always good to double check.

The easiest way to narrow the problem down further would be to test the hdmi connection with another TV. If the xbox works on another TV then you narrowed the problem down to the TV and will need to repair the TV either through warranty support, by yourself or via a TV repair man. If the xbox has the same trouble on a different TV then you know the problem is with the XBOX and you can contact Microsoft Xbox support for repairs.

Let me know if you have any questions.

Regards,
G33k