Index: misc/tabledrag.js
===================================================================
RCS file: /cvs/drupal/drupal/misc/tabledrag.js,v
retrieving revision 1.13.2.3
diff -u -p -r1.13.2.3 tabledrag.js
--- misc/tabledrag.js	12 Jun 2008 19:13:25 -0000	1.13.2.3
+++ misc/tabledrag.js	2 Sep 2008 20:29:34 -0000
@@ -108,7 +108,7 @@ Drupal.tableDrag.prototype.hideColumns =
     }
 
     // Hide the column containing this field.
-    if (hidden && cell[0] && cell.css('display') != 'none') {
+    if (hidden && cell[0]) {
       // Add 1 to our indexes. The nth-child selector is 1 based, not 0 based.
       var columnIndex = $('td', cell.parent()).index(cell.get(0)) + 1;
       var headerIndex = $('td:not(:hidden)', cell.parent()).index(cell.get(0)) + 1;