I just started playing Diablo III and already at King Leoric then thought of doing it the next day as It was already late. Next day I try to play Diablo III, my mission is back to the first mission. But my level and weapons still exist. Did anyone experience this? How to revert back? I don't want to play from the beginning. Played for almost 8 hours back to back. Even my level and weapons still there but I don't want to play from the beginning. Can anyone tell me how to get back? Even my checkpoints are all gone.

Yeah something like that. I just checked from blizzard.com, apparently my account was under "starter edition", I totally forgot to register the product key at blizzard. Once I keyed in the activation key, it went from "starter edition" to standard edition so now I can resume my quest.

My bad.