Microsoft has recently released Kinect SDK 1.5 and some very neat associated features such as face tracking.
I have a Kinect sensor for XBox 360 and Windows 7 (drive
The SDK supports Kinect for Xbox360 as a development device, so this is probably an operator- or hardware error.
Please keep in mind, however, that the SDK must be installed for the Xbox360 version to work - the device is not supported for deployment on machines which have just the driver installed.