Everything seems to work fine, but when I scan the slide in it shows up black, and if I try to continue anyway and save it, the image file I open is a blank white picture. I have calibrated the scanner with nothing in it like it says. I have tried multiple slides in it just in case, and I have both pressed the copy button on the machine and clicked the Snap Shot icon in the program on screen. Both do the same thing; aquire a blank image. Please help me.