Thanks for the info explorer and NepaliJose, appreciate it very much. As for the H1 to F1, does it happen automatically, or do i need to do something. My OPT lasts till Jan 14, 2008, and since H1 starts from Oct 1, 2007, I was thinking about joining a school this fall, so it would knock off the H1B effect. I really don't know how it works. Do advise me on what you know.