--- library/Makefile.in.orig	2010-01-09 16:51:18.000000000 -0800
+++ library/Makefile.in	2010-01-09 16:50:57.000000000 -0800
@@ -29,6 +29,7 @@
 		tabnotebook.tcl \
 		tabset.tcl \
 		treeview.tcl \
+		ZoomStack.itcl \
 		tclIndex \
 		$(cursors)
 
--- library/ZoomStack.itcl.orig	2010-01-09 19:23:15.000000000 -0800
+++ library/ZoomStack.itcl	2010-01-09 19:25:10.000000000 -0800
@@ -1,4 +1,6 @@
-import add itcl
+#import add itcl
+package require Itcl
+namespace import itcl::*
 
 class ZoomStackGraph {
 
@@ -48,6 +50,7 @@
     private method SaveCoords { x y } 
     private method Zoom {}
     private method Unzoom {}
+    private method Empty { }
     private method Push { cmd }
     private method Pop {}
     private method MarkPoint { x y }