i just bought HP tuners and im trying to set it up on my computer and i am suppose to set up a License Info. It tells me to click on the little HP icon and when i click it, it says "(Unable to locate an available COM Port. Make sure other programs are not currently using the COM port that the interface is plugged into)." Any information to help solve my problem would be awesome. I have Windows Vista. Its a Dell Inspiron 1545 T6400 ...Thanks