Display Problem of Collapsibale Panel when published (Server Side)

Hi,

I am using VS 2008 asp. net c# with framework 3.5,

also i am using AjaxControlToolkit, i used collapsibale Panels and Accordion to buit menu bar every thing work very fine on my machine, but when i publish the website on server (Win Server 2003) the display changes and it does looks good anymore :(

here is the screen shot of the both situations :

On My Machine :

On Server :

Please Help i don't know what is going wrong!

Thanks