IE8 compatibility problem

Rendering engine:

IE8 improves rendering of content authored to various web standards (like HTML, CSS and JavaScript) in standards mode. Such changes might cause it to break compatibility as its behavior differs significantly from that of IE7. In order to maintain backwards compatibility, sites can opt-into IE7-like handling of content by inserting a specially created meta element into the web page, that triggers the “Compatibility mode” in the browser, using:

<meta http-equiv=”X-UA-Compatible” content=”IE=EmulateIE7″ />

Source http://en.wikipedia.org

Enable PING on Vista

Using the command prompt, run as administrator:

netsh firewall set icmpsetting 8 enable