Thanks Raevsky
Thank you for your quick reply.
OK, I have to bug you with a follow-up question: do you know of any cases where people who had, say, 710 or 720 days of physical presence were denied an H visa (or green card) because they didn't reach the full mark?
I'm asking this since I began my 2-year period in mid-July 2008, and I'd like to return to the US by mid-August 2010. You're implying that if I'll spend more than 30 days abroad during this period I might lose that academic year.
Thanks.