Hi there, when I bought the machine the cable on the side was loose, I there are 4 different sets of prongs, and I am assuming you need to place it in horizontally. When I tried all 4 rows and the 4th one make a different noise so I assume that is the right row. But, the pen still does not FKN raise, I am not trying to forge signatures here I need architectural drawings but the pen draws right over them. The blue servo does not move at all, even when I use the command in the control panel it doesnt do anything, can someone please help me, there must be some other cable loose.