skvadivel,
Yes, my son's initial I-485 (which was filed in July-August-2007 together with us) was returned b/c the lack of signature (failed at the secretary screening, I guess). We received the bounced back package of my son in October 2007, while we received our receipts of I-485s for me and my spouse. Therefore, I submitted a new I-485 for my son at the end of October 2007. His I-485 got processed fast: receipt in a week, FP notice in a month, approved with no RFE in six months after the FP, following the regular process I guess.
Maybe I call the TSC to find out my I-485? Or write a letter to inform them that my I-140 got approved a year ago? My son's new I-485 did attach with a copy of I-140 approval, while my I-485 wasn't attached with the I-140 approval.
Suggestions? Thanks a million.