Background
The background has to be really pure white (not an off white) for the m/c to not carve it. You can also try raising and lowering the pattern when you are importing it. There are graffic or photo finishing softwares that can be used to remove background. I have done pictures where the background was carved shallow enough that I was able to remove it by belt sanding the top of the board. The software converts the photo to shades of gray to get the depth profile. Hope this will help.
Ron Baird Ottawa, Ontario (summer)
Rockport, Texas (winter)
Beta Tester since Jan. 2005