If you go to the thread I was using (I posted the link earlier in this thread) and do a search, a few others had this issue and posted about it on page 223 or something like that. Do the search within that thread for "White Screen" and you'll find it. Essentially you just have to back up a step, reflash the zip, and it should go.
Also try finding the device with the adb commands that are mentioned in that thread. I knew I had it when it found my device. The cool part was when I was 100% sure I had it on the right track...very good feeling to know you aren't the only one who has had these issues.
My biggest problem was that I was losing the adb connection and couldn't get back into the shell aftter a certain point.