Index: branches/RC/core/admin_templates/js/jquery/thickbox/thickbox.js
===================================================================
diff -u -N -r11711 -r11876
--- branches/RC/core/admin_templates/js/jquery/thickbox/thickbox.js	(.../thickbox.js)	(revision 11711)
+++ branches/RC/core/admin_templates/js/jquery/thickbox/thickbox.js	(.../thickbox.js)	(revision 11876)
@@ -29,6 +29,7 @@
 TB.windowMetaData = new Array ();
 TB.useStack = true;
 TB.closeHtml = '<img src="img/close_window15.gif" width="15" height="15" alt="close"/><br/>'; //  'close';
+TB.lastOverflow = '';
 
 //add thickbox to href & area elements that have a class of .thickbox
 TB.init = function (domChunk) {
@@ -69,6 +70,8 @@
 			if (TB.windows.length == 0) {
 				getFrame('head').$FrameResizer.fullScreen();
 				$(window).scroll(TB.position);
+				TB.lastOverflow = document.body.style.overflow;
+				document.body.style.overflow = 'hidden';
 			}
 
 			TB.windows[TB.windows.length] = '#' + TB.getId('TB_window', 1);
@@ -491,6 +494,7 @@
 		}
 
 		$(document).unbind('keydown').unbind('keyup');
+		document.body.style.overflow = TB.lastOverflow;
 	}
 
 	return false;