I know this is a shot in the dark, but I've reached the end of my sensibilities. I've recently installed Ultradev running on top of my W2k platform. I'm trying to preview my .asp pages w/ the use of the Preview Live Data feature within Dreamweaver but for some reason, the IIS service won't start and I can't. Event viewer gives me this error:

The World Wide Web Publishing Service service terminated with the following error:
The authentication service is unknown.

I've uninstalled IIS and reinstalled it to no avail. The problem seemed to arrise after I installed Personal Web Server (by accident when I was installing Front Page)...

Can you help???