Hi, my I-485 has been turned in for over 540 days and still no sign of approval. I have checked with INS numerous times and the reply is always along the line of 'we have a backlog after 9/11 due to security check'. None of the IIO I talked to believe and want to hear the fact that people whose RD was way....behind me has got approval. So, anything I can do at this point? Thanks.