I have an Orion Motor Tech 50W Co2 Laser. I imported my Adobe Illustrator file, checked for duplicates (none found), and when I run the preview, it traces the center circle once. My settings are: Line, Speed 50, Power 20. When the image is burned, the machine burns the center circle three times, which makes it proportionately darker than the rest of the image. Is there a way to fix this?