>>BTW, have you experience converting from Framework 2.0 to Framework 3.5 and to the new version of VS.
>
>I converted to VS 2008 a while ago; that was pretty painless. However, I just recently converted to 3.5. I'll be going through the deployment to our production webserver sometime early next week so we'll see how that goes. I'm primarily using the controls from Telerik, but I had similar problems with version mismatches between 2.0/3.5 versions of their controls.

I'm not sure what to do at this point. My colleague who installed NET Framework right after me already uninstalled it. Would VS2008 still work with the previous version of the framework?

I actually would love to be able to fix the problem rather than uninstall.