I had my interview last Thursday. I went there with my lawyer; the atmosphere in general was calm and friendly. The officer, Mr. Whetherby, started going through my I-485, got interested in all my previous visas. But... my old A-file with all visa paperwork was lost by INS some time ago. So the officer said he wants to request the temporary file they created when my i-360 was approved. So i have to wait for the decision in mail. It really pisses me off because the original petition approval took 3 years instead of 8 months because they lost my file, and i have to pay for their mistakes. 