I had been using gnuplot and nedit on my iMac running High Sierra. About 2 months ago they both stopped working. When I try to plot with Gnuplot i get the following error message:
gnuplot: unable to open display :0 gnuplot: X11 aborted.
When I try to run nedit I get:
NEdit: Can't open display
They both worked fine 2 months ago and I can think of nothing I've done to cause this. Does anyone have a clue how to fix this.