TJAM51
Dent does have a weird sense of humor.
Perhaps it's something different about your drawing that the programmer
did not anticipate. I haven't looked at the routine to see, but could
you post a copy of the drawing in question
hereand I or someone else will try to figure out what the problem is.
Make sure you include the circle at the area to be cut or perhaps the
failed results will be a good starting place to track down the error.
What version of AUTO CAD are you running?
CAB