Fault - VS 2008 IIS7 Debugging - "The IIS worker process for the launched URL is not currently running"

"Unable to start debugging on the web server. The IIS worker process for the launched URL is not currently running"

Hi All,
I'm at the end of my tether, I have tried everything I can think of. File permissions, visual studio project settings but nothing I do allows me to debug from visual studio by hitting F5.

I can debug if I attach to the w3wp processes running, however this is truely a pain and I really miss hitting the F5 key.


Windows Authentication is enabled through the IIS console

Hitting F5 causes the above message to appear in a dialog and the Security Event Log has an entry "An account failed to log on."with the failure information "Status 0xc000006d, Sub Status: 0x0"

This is very likely to be a simple thing I have missed out, Can anyone offer some pointers for things I could try?

Thanks in advance,
David