Index: mttroot/mtt/bin/trans/struc2gnuplot_txt2wish
==================================================================
--- mttroot/mtt/bin/trans/struc2gnuplot_txt2wish
+++ mttroot/mtt/bin/trans/struc2gnuplot_txt2wish
@@ -148,11 +148,12 @@
 
 cat <<EOF >> ${out}
 
 ## call gnuplot
 proc "plot_var" "title column" {
-    exec echo plot \"${dat2}\" using 1:\$column title \"\$title\" with lines\; > ${tmp}
+    exec echo set grid\; > ${tmp}
+    exec echo plot \"${dat2}\" using 1:\$column title \"\$title\" with lines\; >> ${tmp}
     exec echo exit\; >> ${tmp}
     exec gnuplot -geometry 400x300 -persist -title "\$title" ${tmp} &
 }
 
 ## print output