At least you got it to work once. I've been trying (with help from Support) to get mine to work and the program tells me everytime to plug my sensor in - doesn't seem to matter how I do it it always comes back with the reply to plug my sensor in. Battery is new, USB port IS working and I am at a loss. Am beginning to believe (finally) that I really wasted my money. It's a neat idea but I haven't gotten it to work at all.