i need a help my site
http://www.paktech.co.cc not working properly when a user come on main page it opens and look working but when a user go to iner page 404 file not found message come

for example
http://www.paktech.co.cc will be opened but

http://www.paktech.co.cc/Arts/ will show 404 error any idea
actually i enabled site optimization in cpanel and after that it is now comming also i disabled it again but error is still there

sorry mates my problem is resolved
the error was in .htaccess file on another related to webmaster forums i got help

any way thanks a lot