session cannot be sent to another page after insatallation

hi experts,
i have just installed php traid in my computer. but when i run the system and login , i cannot go to another page and it rediret me to a login page. i think the session cannot be sent to another page, although i have created a tmp folder for a session to be stored there.
so, what do u think the problem is??

thanks in adv.

I'm not sure if i understand your question right but i thing your problem is in php.ini configuration. So check your php.ini session settings