quand je vais sur un site firefox m'affiche:
Warning: stdhead(themes/silver/header.php): failed to open stream: No such file or directory in /Library/WebServer/Documents/gctracker.mine.nu/backend/functions.php on line 508

Fatal error: stdhead(): Failed opening required 'themes/silver/header.php' (include_path='/Library/WebServer/Documents/gctracker.mine.nu/PEAR/:.:/usr/lib/php') in /Library/WebServer/Documents/gctracker.mine.nu/backend/functions.php on line 508

alors que avec internet explorer sa marche