Thanks Ken. I'm downloading the .iso right now from MSDN. Last week I had
deleted it to make room on my drive for a huge Virtual PC image.

Before doing that I also downloaded the hotfix rollup mentioned in Scott
Gu's blog, but this did not correct the problem.
http://weblogs.asp.net/scottgu/archive/2008/02/08/vs-2008-web-development-hot-fix-roll-up-available.aspx