Thanks mdac- It sounds like I have the white screen of death that cheyennedonna speaks of.

Thank You cheyennedonna- I tried searching the forums originally, but I probably wasn't using the correct terminology. Good to know that others have seen this before (and recovered). I briefly attempted the Dingo downgrade, but without being able to see even the boot screen, I must have done something wrong. I an going to try it again a few times to see if I can get it rolling.

Anyways- thanks to everyone so far and I'll let you know if I have any success!