Cache control etc problem

[mosa]

hi

I have tryied in many ways in htaccess to chage the settings but it doesn't work.
There is no such code in template or htaccess. Also used Header unset but no luck.
It always shows the following..

Code:

Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-
        check=0
    Pragma: no-cache

Anyone have idea what could be the problems?