Index: modules/system/system.css
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.css,v
retrieving revision 1.32
diff -u -p -r1.32 system.css
--- modules/system/system.css	27 Jun 2007 17:54:49 -0000	1.32
+++ modules/system/system.css	6 Aug 2007 05:07:54 -0000
@@ -352,6 +352,10 @@ html.js fieldset.collapsed legend a {
 * html.js fieldset.collapsed table * {
   display: inline;
 }
+/* For Safari 2 to prevent collapsible fieldsets containing tables from dissapearing due to tableheader.js. */
+html.js fieldset.collapsible {
+  position: relative;
+}
 html.js fieldset.collapsible legend a {
   display: block;
 }