--- a/ImageEditor.st	Sat Nov 02 19:47:43 2002 +0100
+++ b/ImageEditor.st	Sat Nov 02 19:48:23 2002 +0100
@@ -2929,11 +2929,12 @@
 !ImageEditor methodsFor:'startup / release'!
 
 closeDownViews
-    DefaultRelativeSizes :=
-        Array 
-            with:(builder componentAt:#horizontalPanel) relativeCorners    
-            with:(builder componentAt:#verticalPanel) relativeCorners.
-
+    builder notNil ifTrue:[
+        DefaultRelativeSizes :=
+            Array 
+                with:(builder componentAt:#horizontalPanel) relativeCorners    
+                with:(builder componentAt:#verticalPanel) relativeCorners.
+    ].
     super closeDownViews
 !