I came in USA on Nov15'2004 on Permanent Resident VISA after winning DV-2004 lotterry. My permanent residence visa will expire on Dec06'2004. I am having an emergency and I need to go back to my home country. I have't got my Green Card yet. It will not arrive me before I leave USA. I want to re-enter USA 1/2 months AFTER Dec06'2004. Will I be allowed to re-enter USA using the expired immigrant VISA? OR I need to have some special permission before I leave USA.