strange text in localhost url
<p>I am using development server, not IIS (I think) and my url strings are coming out differently when I try to browse to the page I'm working on. </p>

<p>The usual way they looked;
  localhost:44044/Account/Register.aspx</p>

<p>Now they look like this;
  localhost:44044/(S(rzoxv2lrex3xsh1o1lsfdnpf))/Account/Register.aspx</p>

<p>Does anyone have a clue where that section after localhost comes from? And I'm wondering if that's why I'm getting a specified cast error now when I try to run the page (it was working earlier)</p>
