VS.net - Change the Virtual directory for a Web project

[arduk]

This should be very easy, but I can't seem to work out how to do it...

I have a web application which I have developed in VS.net (c#)

Initially, when I set up the web app, I mapped it to a virtual directory that was two levels deep
ie if "VirtualDirectory1" is a virtual directory straight under the default web site on my local machine, I initially mapped to a location one level below this ie:

http://Localhost/VirtualDirectory1/webApp

I have now created a new virtual directory directly under the default web site which I have pointed to the same location.
ie

http://localhost/NewWebApp

How do I change the settings in VS so that when I run (in debug mode) the web application from VS.net, it starts from

http://Localhost/NewWebApp

instead of in

http://Localhost/VirtualDirectory1/webApp

??

Any help on this greatly appreciated!!!