I've been getting *killed* by trying to get Silverlight Alpha 1.1, Silverlight RC 1.0, VS2008 beta 2, and VS2005 all to work seamlessly. Despite uninstalling/reinstalling various ways, I kept getting nothing but pain: missing dll references, mainly, but I can't fix that despite adding registry keys and/or pointing to the assemblies directly in the Silverlight folder. (Apparently there are a few known issues and we're working on a patch to correct some of these issues.)
Well, I was about to give up completely but read Doug's post
on his install order. I decided to give it a shot, so I uninstalled everything relating to Silverlight. I then followed his install order, except I didn't touch VS2008 beta 2. That install was a bit too long so I figured I'd give it a whirl without uninstalling/reinstalling it.
Amazingly, everything seems to be working fine now! Wow. Normally Doug is pretty far off on these things, but this one is gold. :) Thanks Doug!