The "Sistine" application is operated by using the [shift] and [ctrl] keys to move forward and back again, then use the the arrow keys to move up or down and side to side. It is a big program so wait for it to completely load before you use the navigation keys. Once loaded however you may choose to leave it running and just reduce it to the tool bar so you do not have to open it and wait every time you chose to view it. ENJOY!