phpMyAdmin problem

[rawtar08]

hi
when i click phpMyAdmin i got this error

Fatal error: session_start() [<a href='function.session-start'>function.session-start</a>]: Failed to initialize storage module: files (path: ) in /var/www/html/phpMyAdmin-3.5.8.1-all-languages/libraries/session.inc.php on line 78

any solve

thanks