I filed for LC in September, 2004 (EB2 RIR). My case was transferred to Philadephia Backlog Elimination Center. I have not received 45-days notice yet. In this case, should I do a PERM refile (keep PD) or should I file a new PERM case (do not keep PD)? I would like to have 485 filed asap. Any opinion is appreciated! Thank you!