Our color postscript printer does not handle Adobe 3. A while back someone
mentioned using psfix to translate back to Adobe 2 as follows:
psfix mapfile.ps > fixmap.ps
Another alternative is to download the new ps.map code (late January version)
from the moon. It has an option to set the level of Adobe output to 2 or 3.
It works fine for me here to produce Adobe level 2 for our printer.
Bill Baker
Univ. of Wyoming