IE Crashes when I close a CRM window

This is probably one of the first things you'll come across when you've upgraded to Internet Exporer 9 and are closing Microsoft Dynamics CRM pages before they've fully loaded. And it's dreadfully annoying!

Microsoft have noticed this problem and published a work around. Which is a simple registry change:

1. Point to the Start menu, click Run, and then type regedit.
2. Navigate to HKEY_Current_User\Software\Microsoft\Internet Explorer\Main
3. Right-click Main, and then select new DWORD (32-bit) Value
4. Enter HangRecovery as the name.
5. The default value will be 0.

For full details on the problem see here: http://support.microsoft.com/kb/2698959