Where do I begin?? I am a newbie to the whole cutting/plotting thing. So I am very excited to get started cutting. Just received my cutter a couple of days ago and I am slowly getting it set up. I am having problems with the blade holder. I cannot get the blade to stay lowered. When I push on the silver pin at the top, the blade lowers and when I release it, it pops back up into the holder. Attached are 2 pictures of the blade holder. One with the holder together and one with it apart. From the booklet I received and the extra typed document from uscutters, it seems to me that I am missing some sort of screw that is suppose to keep the blade lowered/adjusted. I hope this all makes sense. Please help. Thanks