To add to my above post.....
Also, this site relies heavily on javascript sourced from yui.yahooapis.com and I often see the browser hang: waiting for yui.yahooapis.com.
Because we are each located in different parts of the country, and each of us has a unique internet route to ECF and all of these other sites, our individual experiences will vary somewhat. For instance, If I have a slow route (bottleneck in the path from here to there) to the yui.yahooapis.com site, but you dont.... I will be waiting longer for the page to load.
Most browsers have the ability to show the raw html or code that actually renders the page. In Firefox, it's under Tools -> Web Developer -> Page Source which will pop up another window showing you the raw page. Take a look. You can see the urls of the various sites these pages depend upon.