URGENT:: Using previous F1 visa after H1B termination

[axient]

Hi,

I came to USA with F1 visa which is valid till 2011 on my passport. In Oct 2008, my status changed to H1B but i didn't went for visa stamping. Now my H1B has been terminated recently and i also graduated recently in July 2009. Can i join my previous University (for which i got F1 visa initially) for post graduate studies and go back to my country with new I-20 and come back to USA again with my previous F1 Visa? (with out having to go to US consulate in my country for F1 visa stamping again)

Thanks,
sakya