No xaml designer in vs2008 Team System

I have faced the problem after installing vs2008 team system, there was no xaml design view & no graphical toolbox. I have repaired & reinstalled but problem was still occurring.....

Finally i got the solution from a forum. I m gonna make it clear

1. Close vs2008 team system if it is open.
2. Go to: start menu>all programs>Microsoft Visual Studio 2008> Visual Studio Tools> Visual Studio 2008 Command Prompt.
3. Write on the command prompt: devenv/resetskippkgs
4. Then open a wpf solution & right click a .xaml file and select open with, u will appear a dialog. U should set windows presentation foundation designer as default designer.

Now everything is right.