I have a Jailbroken iPhone 4 (v4.0.1) and when I download themes from Cydia or RockApp, even the HD ones which are for iPhone 4 only, the theme wallpapers dont display properly. All icons and lockscrreen wallpapers and other bits work fine, its ONLY the Home Screen Wallpaper thats part of the themes that dont display.
I get a black screen on the top left quarter of the wallpaper:
attached an example!
Couldnt find anyone with similar issues on the net! Some say winterboard doesnt work properly with iPhone4 or iOS4 yet I see videos/pics of ppl showing its working fine.
Some other ppl say its the HDwallpaper file which isnt recognised by winterboard and u need to add a @2x prefix at the end of the image file via SSH?