Hi, I'm new to vinyl cutting and have a question. I purchased a refurbished MH365 and have had some success using it by reading the manual. Does anyone know how to align pre-printed vinyl so that it cuts out the images correctly? Specifically, I am trying to cut circles around a small image to use for stickers. I can't seem to determine where to position the blade in alignment with the images. I've set the origin but the blade shifts to a border line. I'm using Signblazer software from the USCutter website. Any help appreciated. Thanks