diff -r b3be5697d26f -r e2999d76523a DataSetBuilder.st
--- a/DataSetBuilder.st	Mon Oct 05 13:47:31 1998 +0200
+++ b/DataSetBuilder.st	Sun Oct 11 12:35:20 1998 +0200
@@ -2405,7 +2405,7 @@
     columnView notNil ifTrue:[
         |previewColumns columnItems columnList|
         columnList     := List new.
-        previewColumns := columns deepCopy.
+        previewColumns := columns copy.
         size           := previewColumns size.
 
         size ~~ 0 ifTrue:[