Encad vinyl jet 36

I am new to printing. When I try to print to the ecad 36 with flexipro 7.6 I can't see anything in the production manager general window I do see my image in the panel window and of course it will not print. This image has been printed before by ten last employee .
ouch! I all most broke my arm patting my self on the back. I figured it out, there were no deminsion entered in the box for the general window which was gray not showing the any image. Once the size was entered there it was and it printer. I couldn't find that in the manual but I bet it's there. Thanks for your reply. As usual it was the nut behind the keyboard