I finally found a posible answer to my own, no wonder I haven't get any replies since my last post, because there isn't really any "answers" to my own question. I will share my own experience with this situation and hope this information will be useful to someone. After GUZ received P3(2005/08/xx) and is completed with name check(2006/02/27), 2006/03/03---I called the Visa Information Center in Shanghai, and learned that the case is, "Waiting to assign a 'Document Qualification Date', and Interview(or P4) will follow around 4 months"...( , what?!?!) 2006/03/03---I sent an email to GUZ(from their website) and got a reply the few days later and learn that the case is "Queue to schedule an interview date" and interview will most likely within 2-3months( , oh well, I waited this long already.) 2006/03/08---I called the DOS and this really really very very lovely lady told me GUZ sent out P4 on the 7th and interview day is 2006/04/03.( ) I learned that for case stats, email GUZ. For P4 and interview stats, call DOS. DO NOT recommend calling Visa "Information" Center in Shanghai.