MILLARD -
Thanks for your reply, please let me know what you find out. I called ArchiCad support this morning, but of couse, my problems are not their problems, meaning they have not called back today.
I went to the orginal install disk and custom installed only PlotMaker. Thank goodness, all is now plotting as it should, no grid lines over the placed drawings. However, I am not sure of the long term consequnces of using PlotMaker 1812, with ArchiCad 2018 files.
One of the reasons I hate upgrades is the they seem to cause as many problems as they fix. For example, Tiger, which I have avoided loading with ArchiCad untile I finish my current work. When I loaded the "Hot Fix" 2018 I foolishly did not consider that Graphisoft can't be depended on to fully test it's fixes.
That appears to be our job. Now I will have to wait three months for the next fixed version of PlotMaker and hope they have fixed the fix, that broke what didn't needed to be fixed.
ArchiCad 21 / OS X 10.13.5 /
iMac 3.2GHz i5 - 32GB /AMD Radeon R9 M390 - 2048 MB/
Dual 5K - 27" Displays