I upgraded to 4.0, jailbroken, with no problem. I used redsnow 0.9.5b5-4 release, and selected custom boot/recovery icons, multiasking, homescreen wallpaper, and battery percentage. However, when I install a theme via winterboard, it replaces my wallpaper, no matter what. I've tried enabling the theme with userwallpaper/user lock background enabled and disabled, but it still replaces my background. Do I need to rejailbreak without the wallpaper option selected, or is it just a matter of winterboard not being updated to deal with themes and 4.0?