Please don't become discouraged by all the info that has been provided. The PRO-106 is a sophisticated device and requires some time to learn. Also, you have spent a fair amount of money for the scanner, cable and software. If the next $15 you spend is for becoming a "Premium Subscriber", trust me, you won't regret it. Again, lots to read and reread, just give yourself some time for it to sink in. Be sure to view as many posts as you can regarding the 106. It will all come together. Good luck and welcome to the forums.