Issue/Problem/Bug: Quest is completed before it should be. Quest log is bugged now.
My computer specs
Operating System: Windows XP
Describe the problem. Be as specific as possible!:
I started the Diligent Explorer quest. I logged off after the three hours on the first day. The second day I returned and decided to try my hand at the PQ Mania medal, so I switched with Delair. Then I decided against it and switched back to Diligent Explorer. Suddenly, there was a book above his head that showed it was a completed quest. So I clicked on him and clicked to complete the quest. Delair said, "Congratulations, you have successfully logged on for... blah blah, Here is your reward!" Then I got an error showing up, "This quest has ended for an unknown reason." Then I d/ced.
I logged back into the game. Now every time I open up the quest window, I d/c. This is really, really annoying.