Primefaces IE p:tree not expanding

Question

I am working in environment websphere v8.5, JSF 2.0, Primefaces 4.0, Internet Explorer 9.

i have also included CSS files for UI designing in my application. My problem is: When I run my application on IE with URL localhost it works fine when I access application on my IP say 172.20.2.106 whole page UI is change (not orignal one) and primefaces p:tree is not expanding

My Question is: Is this issue is because of the server? or IE or anything else i don't know..

Answer 1

Solved for a while. i just convert the mode of document of IE, like press F12 and

and switch to it, but still i have a Query, What is the Compatibility of Primefaces with IE, as It also show Internet Explorer 7 standards it means some user's can run IE on 7 standard, or how to change their mode using code.