Forum Moderators: open
1)Patience
2)No WPG
3)Get lots of backlinks
4)Add content
5)Keep reading WW everyday for an hour
6)More patience
7)If all else fails, close that domain, get a new one, use that domain as a FORWARD ONLY (i.e don't have any dupe content on it). Register a new domain, and put all the content there.
The same thing happened to me with my new site. After launch, I got in position #48 then dropped and after 2-3 weeks came back. Now it's pretty stable and going up.