validation element 'content' is not supported
Problem occured after adding a asp:chart element to a project.
after that I get Validation error on all asp: elements and user control elements in the markup.

Tried to reinstall the VWDEE 2010, and SP1 
Tried reset the settings.

The problem is still there.
On all web applications/sites new and old. 

When in design view i can use the properties window on ASP: elements but not on usercontrols.
In script view the properties window render is as unknown HTMLELEMENT.

Any ideas?

validation element 'content' is not supported
===

Problem occured after adding a asp:chart element to a project.
after that I get Validation error on all asp: elements and user control elements in the markup.

Tried to reinstall the VWDEE 2010, and SP1 
Tried reset the settings.

The problem is still there.
On all web applications/sites new and old. 

When in design view i can use the properties window on ASP: elements but not on usercontrols.
In script view the properties window render is as unknown HTMLELEMENT.

Any ideas?
