I've discovered a small hitch while trying to install the newly released components: If you want the VS tools, install silverlight_chainer.exe, but do NOT install the Silverlight SDK. If you do install it before the tools, the VS tools will complain that one of 5 things is wrong, but it isn't really. Just don't install the SDK - it will be installed as part of the VS 2008 tools for Silverlight 2 Beta 1. To those installing the MVC framework preview 2, be sure to read the Release Notes...