Index: t3lib/class.t3lib_div.php
===================================================================
--- t3lib/class.t3lib_div.php	(revision 5105)
+++ t3lib/class.t3lib_div.php	(working copy)
@@ -3741,9 +3741,9 @@
 			$bInfo['BROWSER']= 'konqu';
 		} elseif (strpos($useragent,'Opera') !== false)	{
 			$bInfo['BROWSER']= 'opera';
-		} elseif (preg_match('/MSIE [4567]/', $useragent))	{
+		} elseif (strpos($useragent, 'MSIE ') !== false)	{
 			$bInfo['BROWSER']= 'msie';
-		} elseif (strpos($useragent,'Mozilla/4') !== false || strpos($useragent,'Mozilla/5') !== false)	{
+		} elseif (strpos($useragent,'Mozilla/') !== false)	{
 			$bInfo['BROWSER']='net';
 		}
 		if ($bInfo['BROWSER'])	{