I have a weird namespace problem in VS2005. I have two classes

namespace WebApp.BusinessObject
{
public class user
{
}
}

and

namespace WebApp.Controls
{
public class Inbox
{
//here i am trying to access WebApp.BusinessObjects.User and it gives me an error that BusinessObjects is not a part of WebApp
}
}

this exact same code used to work with .net 2003. Is there anything I am doing wrong or 2005 namespaces are to be handled different? Please help.