Hello all Ive been lurking on this site for a couple days now and I have a question. How do I change the default screen lock on my Hero. I see the wallpaper on my memory card named htc_wallpaper_01. However when I went to a graphic site I downloaded the picture I wanted to use and then I changed the name to htc_wallpaper_01 yet my default lock screen wallpaper doesnt change. Do anybody have any suggestions..