This quest can be completed solo. If you are in a group and you get to the point where the box does not allow you to continue (basically its option 1, and its yellow). You have to drop the group (leave the 1 person left in the instance), once everyone is out. He can continue the quest. Then reinvite everyone back. They…
You clearly missed the analogy he was providing. Besides I'm sure you never actually read the forums rules with a million other people. (as you go and read them now to pretend you actually had read them)
Their jquery script is crashing and causing a white screen. One of their servers is down (according to the log). If you just go into the /Neverwinter/Live folder you can run the client (after it updates from the white screen). Don't bother trying to login, the login servers are down too. Just a FYI i suppose.