I have been using DVE to fix my darkness problems on my TV w/ my 360. However Since I run games in 1080i/HD , me running DVE does nothing. I switched my 360 back to non HD today, and things got brighter.

Is there a way I can adjust things correctly for HD display?

oh im hooked up via component if that makes any difference.

adjust UBOF for that input in the service menu.

that should fix it.

I have the same problem and for the longest time I couldn't adjust my overscan properly because of it. But a week or two ago I DVRed some test patterns off of HDNet and was able to use those to do my adjustments. Because my cable box can output in any resolution ( Except 1080p, of course ) I was able to adjust for all of the different resolutions. But on my 360 I can get DVDs to play only at 480i or 480p. I even bought the 360 HD-DVD player and it won't upscale either. DVE is also available on HD-DVD but I have the DVD version. I bought it first now knowing that a few weeks later I'd decide to buy the HD-DVD attachment for the 360.

I have heard that you can upscale DVDs with the 360 if you run it over VGA. Why that would be true I don't know but it's what I've heard.