My Opt is valid from Jun. 2005 to Jun. 2006. From Dec. 2005, I begin working for a company. The company applied for a H1B visa for me valid from May 2006. So it seems to me that my visa status will still be F1 till May 2006. However, it is very difficult for me to keep the position in this company. If I left this company before May 2006, do I have trouble to transfer to other company ? Probably there is no tranfer at all, and the only choice for me is to go back to the university. Any suggestions are very welcome.