Customers using CRM 2011 RU12 and above may experience issues when using IE9 and higher versions. Reported issues include data not rendering correctly or java script errors displayed in c360 products.
Future versions of c360 2011 products will address this current browser limitation.
For now, the temporary workaround is to implement our c360 custom http handler which forces all the pages to IE8 compatibility mode when using higher versions of IE.
Click here to download and install the c360 Custom HTTP Handler