Exception window in VS.NET 2010 is missing the "User-unhandled" column

In Visual Studio 2008, the Exceptions window has two columns with check boxes:

In contrast to this, in Visual Studio 2010 the column seems to be missing:

My questions are:

• Is this a configuration issue on my machine or "by design"?
• Do I have a chance to re-enable the column or to mimic the "user-unhandled" b开发者_开发知识库ehaviour in a different way?

Update:

The following extensions are installed in my Visual Studio 2010 installation:

• PowerCommands for Visual Studio 2010
• Productivity Power Tools
• Visual Studio Color Theme Editor
• VisualSVN
• ReSharper

My installation of Visual Studio 2010 does have the "User-unhandled" column:

Edit

From VS2008 Debugger does not break on unhandled exception...

As it turns out, if you do not have "Enable Just My Code (Managed Only)" checked in the Debug options, the "User-Unhandled" column does not show in the "Exceptions" dialog.