I just received my RFE notice in the mail as well. It's asking for my current SEVIS I-20, but I had already submitted a copy of my current SEVIS I-20, along with copies of all of my previous I-20's. :-/ I am confused, however I will be consulting with my DSO tomorrow and if anything, I guess I'll just be resubmitting my current I-20 again (whatever USCIS asks I guess).