We had the same problem and realized that there are multiple versions of the Kinect SDK available for download. Check Control Panel > Programs and Features to see what version you have installed. You'll need to uninstall your current version anyway.
This is the version you need:
http://www.microsoft.com/en-us/kinec...elop/beta.aspx From:
http://forums.usfirst.org/showthread.php?t=18738