404 Page not found

[eluser]debasishdebs[/eluser]
I have setup a model cms using codeigniter in my localhost mchine and it works perfect.
But when i upload it to server(i have changed routes and config files too), except default_controller->index() , none function work.
It shows 404 error.
everything exists.

Help please!

[eluser]debasishdebs[/eluser]
Help guys! I need i asap :|
I even tried replacing index.php file( I ve another setup of CI in another directory & it works fine. SO i replaced that index.php into the non working one) Still no success :|