Dear mailing list members; I've successfully built Demeter from source on my computer running Ubuntu 18.04. Running "dathena", for example opens the familiar Athena window. Once I try to plot something, however, I get no plot window. It appears as if the program has done something, but the window just doesn't appear. I have installed gnuplot-x11. running 'gnuplot -e "plot sin(x)"' produces no window, but 'gnuplot -p -e "plot sin(x)"' produces a plot, and if I just run 'plot sin(x)' within gnuplot, then I get the plot, so it appears that gnuplot itself is working correctly. 'show terminal' results in: terminal type is wxt 0 enhanced I have tried changing the terminal to 'wxt' under preferences>gnuplot>terminal in Athena, which didn't fix the problem. I have also tried changing the terminal to 'qt' and installing gnuplot-qt. This didn't work, so I purged it and switched back to gnuplot-x11. I haven't managed to get gnuplot to run with x11 as its default terminal. It seems that the default terminal of gnuplot-x11 is wxt. I'm not sure if these matter, but when I run Athena, I get errors in the terminal like this: (dathena:16207): Gtk-CRITICAL **: 11:55:29.414: gtk_box_gadget_distribute: assertion 'size >= 0' failed in GtkCheckButton thanks, Joseph -- *Joseph Zsombor-Pindera, BSc* PhD Student, UBC Chemistry C