Cannot debug ASP.net using VWD 2008 Express Edition

When I run the website in the debugger, I get the following error:

"Unable to attach to application 'WebDev.WebServer.EXE' (PID: 3712) using 'MACHINE'.  Unmanaged debugging is not available."

I was running Visual Web Developer 'Orcas' Express Edition.  I installed Visual Studio 2008 Beta without uninstalling anything first (stupid, I know).  Everything still worked perfect after that.  I saw that there was a new 2008 Beta 1 express edition, so I installed that.  It would not debug.  I then uninstalled it, uninstalled the Orcas edition, and reinstalled 2008 Beta 1.

I have not (nor do I really want to) uninstalled VS 2008.

I probably just changed a setting in VS 2008 (which had more options) and that setting came across to the express edition, and it doesn't support it.  I have had something like this happen before and I just needed to load VS and change it, then reload the Express Edition.

I don't want to use VS to build websites because the windows and layouts I used in AppDev are not conducive to WebDev.