stupe72,
You posted your experience some time back in the Family Forum too.. I understand your pain and Arligton office is a huge problem, but I also think if this GC is so important to you and you have been waiting after the approval a long long time, then why dont you make a trip to Arlington Office..
All of us work some where or another. But I am sure you can take couple of hours off. If the GC is that important, then visit Arlington. I know my friend in Newark had the same problem for his father. and when he went there 2 months after the interview, even though he hadnt received any notification about securiity clearance, the officer told him its done and stamped his fathers passport...
goodluck