Long dashed lines with short dashes saved as EPSF from MacDraw Pro 1.0v1 or Claris CAD cause a Postscript error when printed. This is an issue with the EPSF XTND filter (version 1.0) available with MacDraw Pro 1.0v1 and Claris CAD 2.0v3.
Workaround: try using a line with longer (hence, fewer) dashes. Or, create two or three lines overlapping end-to-end, instead of a single line. (In Claris CAD, try using the cutting tool to cut the line into two or more segments.)