--- gtk-compat.c.~1.4.~	2003-08-05 10:08:35.000000000 +1000
+++ gtk-compat.c	2003-08-05 11:04:32.000000000 +1000
@@ -115,8 +115,11 @@
 void 
 gtk_color_selection_set_color_interp (GtkColorSelection *selection, GdkColor *color)
 {
-  gdouble vals[3];
+  gdouble vals[4];
   
+  /* get current opacity into vals[3], when in use */
+  gtk_color_selection_get_color (selection, vals);
+
   vals[0] = color->red / 65535.0; 
   vals[1] = color->green / 65535.0; 
   vals[2] = color->blue / 65535.0; 
@@ -128,7 +131,7 @@
 GdkColor *
 gtk_color_selection_get_color_interp (GtkColorSelection *selection)
 {
-  gdouble vals[3];
+  gdouble vals[4];
   GdkColor dummy, *color;
 
   gtk_color_selection_get_color (selection, vals);