Can you check if the Designer extension was installed? (Visual Studio Menu >> Tools >> Extension Manager)
If not, you can install it manually at C:\Program Files (x86)\DevForce 2010\IdeaBlade.VisualStudio.OM.Designer.vsix. (Be sure to restart Visual Studio)
Let me know if that was the issue.
Edited by sbelini - 09-May-2012 at 11:26am