Aye, as Ivan says it probably needs a new motherboard.
So sorry this happened to you -- it is a rare and unpredictable occurance, but known to happen to Androids (just Android 2.2??). And just when you were getting to the really enjoyable part of PE ownership!
I hope you will be able to exchange for a better unit from Woot. Will you remember/have backups of what you did to get this one in shape?
Let us know!