I installed the necessary software from SCT onto my computer and when I go to plug in the tuner and transfer a file from the computer to the tuner it prompts me to unplug and load necessary drivers. It did this 6 times! So I unistalled the SCT software and tried again. Prompted me 6 more times to load drivers and each time saying it was successful. WTF is going on with this? Software glitch? I emailed SCT and am waiting on a response.