Remote Desktop session does not respond to keyboard input or mouse input after it loses the focus

Article ID: 2579381 - Last Review: August 10, 2011 - Revision: 1.0
A remote desktop session does not respond to keyboard input or mouse input after it loses the focus in Windows 7 or in Windows Server 2008 R2

A fix has been released for the scenario where the remote desktop session does not respond to any of the keyboard or mouse input in some scenarios.

The issue occurs because the remote desktop ActiveX object does not deactivate the focus of the remote desktop session when the focus is lost. Because the focus is still activated, the remote desktop ActiveX object cannot set the focus of the remote desktop session again when you change the focus back to the session.

Source: http://support.microsoft.com/kb/2579381/en-us?sd=rss&spid=14134