I will be starting driver training in 6 days and beforehand I was given a CD for DIAD training. I have been working on it for a few days after work, practicing, but for some reason I keep mixing up the big up/down arrow with the enter buttons (as to when to use them.) It is driving me crazy. I know when to press stop complete, or move around on the screen with the enter button or small up/down arrows. Would there be any advice as to how to keep them straight and know when to use which? I cannot let the DIAD beat me! Thank you very much for any advice.