For those still waiting for their GC... I just received a phone call from a USCIS rep. Yes, they called me out of the blue to inform me about the troubles they're having about the system change. Basically, during the system change the POE-related information was not loaded up properly and they're awaiting for the POE data to be processed properly by the Texas Service Center. I guess this would affect most of you that have entered/paid in Sept.~Nov (including me). She gave me an IOE (receipt) number and also sent me an email with phone numbers and instructions to follow up if I don't get the card in the next 30 days. Well, that will be way past the 90 day period but there's nothing I can do. Just be patient and wait.