ActionLink behaving odd in ASP.Net MVC 2 Preview 2

This action link:

 <%=Html.ActionLink("About","About", "Home" ,new  { @class="menulink" }) %>

Produces the following href 'About?Length=4' so it works in the 'root' of the application, but does not once you go one leve开发者_JS百科l or more deeper. Also...why is the '?Length=4' being appended? Lol.

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Go it...my parameters are out of order and missing a null RouteValueDictionary...should be:

<%=Html.ActionLink("About","About", "Home" ,null,new  { @class="menulink" }) %>