can anybody help me on my situation. I am scheduled to take an exam in Hawaii this march 2007 and I was already given a single entry B1 visa (which will expire on May 2007) with an annotation of "To take exam in Hawaii March 2007". my problem is I have relatives in california which i'm planning to visit after my exam. will it be possible for me to go to california with a single entry B1 visa that I have without getting any trouble with the US immigration. this is the first time that i'll be travelling and i'm afraid if i'll get into trouble. your advise is pretty much appreciated. thanks.