This morning, received a bunch of emails from USCIS. My and my wife's I485 were approved.
NIW I140 RD 8/2004 AD 4/2005
I485 RD 2/2005
First FP 5/2005
Stuck in NC
Contact USCIS, FBI, Senator, First Lady from 9/2006
Filed WOM 11/2006
My wife's second FP 11/2006
12/2006 Received letter from FBI: First Lady contacted them and they will clear my NC ASAP (My wife's NC cleard in 2/2005)
1/2006,US attorney required extension to answer my WOM
Expedited second FP appointment for me: 2/7/2006
LUD: 2/7, 2/8, 2/13, 2/14
I485 approved
I don't know which steps worked out, but I suggest you should try every efforts to expedite the NC.
Thanks for everyone in this Forum, especially Xiaobutu and Radiology.