--- t3lib/class.t3lib_basicfilefunc.php	2008-04-13 23:45:44.000000000 +0200
+++ t3lib/class.t3lib_basicfilefunc.php	2008-04-13 23:55:21.000000000 +0200
@@ -474,7 +474,8 @@
 			$fileName = $this->csConvObj->specCharsToASCII($charset,$fileName);
 		}
 
-		return preg_replace('/[^.[:alnum:]_-]/','_',trim($fileName));
+		$fileName = preg_replace('/[^.[:alnum:]_-]/','_',trim($fileName));
+		return preg_replace('/\.*$/','',$fileName);
 	}
 
 	/**