Hi, DrGeo 18.06 for Mac OSX[1] was built against P6.1 32bits VM (as far I remember). On Mac OS X High Sierra 10.13.6 (17G65), drgeo starts but there is no window. Is there known issues as this one? Thanks, Hilaire [1] https://launchpad.net/drgeo/trunk/18.06/+download/DrGeo.app-18.06a.zip -- Dr. Geo http://drgeo.eu