Ok, got version 11 - debugging works now, thanks!!
A couple of observations - may or may not be as intended operation:
1. I have Chrome installed. When I start the debugger, IE9 and Chrome both pop up. Both display the start page.
2. IE9 seems to be the anchor for the debugging process - if I close IE9, both the debugging session and the web server go away.
3. If I close Chrome, everything still runs in debug.
4. I can stop debugging in VS2010 and IE9 and the web server stay running.
5. Starting another debug session will open a new tab / window in Chrome.
Is this intended operation?
In contrast, when I debug with the built-in web server, only Chrome pops up.
Thanks again for the quick fix!
daver