DK starting zone issue

After I complete these 4 quests :
If Chaos Drives, Let Suffering Hold the Reins
Grand Theft Palomino
Death's Challenge
Tonight We Dine in Havenshire.
I should be given a new quest called "Gothik the Harvester" by Prince Valanar, but for some reason hes not giving me anything and there's no other quest around (Note my quest log is also empty). I've asked around and it only seems like I have this problem.
Anybody has any idea?

Edit: Ty for moving!

go and finish a quest at the mailbox in the mid - then it opens, wierd bug

Thanks man! that worked.