--- wxMaxima-0.7.2/data/wxmathml.lisp.old_gnuplot	2007-04-02 10:30:35.000000000 -0500
+++ wxMaxima-0.7.2/data/wxmathml.lisp	2007-04-09 14:39:04.000000000 -0500
@@ -1025,7 +1025,7 @@
 
 (defmvar $wxplot_size '((mlist simp) 400 250))
 
-(defmvar $wxplot_old_gnuplot nil)
+(defmvar $wxplot_old_gnuplot 1)
 
 (defun $wxplot_preamble ()
   (let ((frmt (if $wxplot_old_gnuplot