Hi,

I have X360 and Toshiba 32AV500P HD LCD TV and I'm using hdmi cable.

This TV using 1366*768 native resolution and it has 1:1 pixel mapping support at 1366*768 but X360 only gives me 1280x720 resolution. Doesn't matter 720p or 1080i settings.

How can I set to XBOX to work at 768p?

Thanks...

What settings are available to you on the display settings page? There should be an option to use 1366 x 768 which would be as close as you can get to it. The option won't be in the same list as the HDTV resolutions, but should be available before you reach them.

Remember, even though your TV may support 1:1 pixel mapping, the conected equipment will need to be adjusted to take advantage of this fact. If you get the 360 to output at 1366x768, there's no guarantee it'll output in 1:1 mode.