


I also hear what your saying "why the blocky black bit?" beleive me I understand your pain, it's been added to ensure those with widescreen format get the image properly displayed, if its causing a problem on your TV format just lop it off in any image program.
Click images for dashboard size,
So how do you get them on your 360 then? well there's the long way
see the following
Setting your xbox 360 wallpaper
Themes? where the heck are they?
or simply plug in a USB flash memory stick into your PC and you can copy files from it to your Xbox hard drive and set them as the background of your dashboard. Unfortunately you'll have the same image across each blade, unlike the official xbox360 themes.
More Dashboard backgrounds
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