To view charts and graphs, you need Microsoft Silverlight installed. If you do not have Silverlight installed, you will see a message to install it. However, there may still be an instance where the charts appear blank. This is because your server is not configured correctly to render the charts and graphs.
The steps below were completed using IIS Manager User Interface in Windows Server 2003 IIS 6.0. Your screens may look a little different.
Start IIS Manager
From the Start menu, select Administrative Tools and Click IIS Manager.
Locate MIME Type Settings
Right click on the server name and select Properties.
In the Properties Dialog, click on the MIME Types button.
Define the Correct MIME Types
In the MIME Types Dialog, click the New button.
In the MIME Type Dialog enter one MIME Type at the time:
MIME type application/x-silverlight-app
MIME type application/xaml+xml
MIME type application/x-ms-xbap