I downloaded the stock images for android 2.2 rooted for my moto droid from rom manager and installed it thinking it was gonna be rooted. When it finished installing I went through the beginning setup and into the app drawer to see if the superuser icon was there in which it was. So I downloaded rom manager again and opened it and it told me I couldn't be granted the superuser permissions. I clicked the superuser icon in the app drawer and it brings me to a white screen and that's it. Any advice?