Wiki: 1.5.0 apache: 2.0.54 php: 4.4.0 mySQL: 4.0.25 OS: Windows2003 server When I search from the wiki home page, I get a notice on the top of the result page as below. Anyone has any idea? Notice: Only variables should be assigned by reference in H:\myWeb\wiki\includes\SpecialSearch.php on line 164 Thanks, Martin