Hey all, we're having some issues with the prototype library over here at MySpace. We have OpenSocial apps that live on our profile/home pages in an iframe that are built by third parties. Those apps are allowed to use prototype.js. An IE bug is causing browsers to crash when prototype is loaded into those iframes. When the browser window is closed before the iframe's DOM has finished loading the browser goes into an infinite loop launching new browser windows/tabs until all memory is exhausted.