In the cutout dialog box click the advbanced tab and be sure the number of passes is set to 1, you also might want to check your image in your design program prior to sending to signcut. Be sure you do not have a fill assigned to the stroke and also be sure your image does not contain duplicates nested over the original. To do this ungroup the image then in wire frame or outline mode slect portions of the image and drage them to the side to see if there is a duplicate image beneath it.
If this does not help please iupload or email a copy of your file for us to look at..
To email send it to
kimon@signcutusa.com