which I didn't know about, but which is clearly a waste of effort
since we keep our own backing pixmap for the puzzle window.
[originally from svn r8960]
fe->statusbar = NULL;
fe->area = gtk_drawing_area_new();
fe->statusbar = NULL;
fe->area = gtk_drawing_area_new();
+#if GTK_CHECK_VERSION(2,0,0)
+ GTK_WIDGET_UNSET_FLAGS(fe->area, GTK_DOUBLE_BUFFERED);
+#endif
get_size(fe, &x, &y);
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
fe->w = x;
get_size(fe, &x, &y);
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
fe->w = x;