Microsoft KB Archive/237606

= The keyboard is not detected or LED lights do not work correctly =

Article ID: 237606

Article Last Modified on 3/23/2006

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APPLIES TO


 * Microsoft Comfort Curve Keyboard 2000
 * Microsoft Internet Keyboard
 * Microsoft Natural Keyboard Pro

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This article was previously published under Q237606



SYMPTOMS
When you connect a Microsoft Internet Keyboard or a Microsoft Natural Keyboard Pro to a Universal Serial Bus (USB) port on the computer, you may experience the following symptoms:
 * The keyboard may not be detected by the operating system during the startup sequence.
 * The LED lights on the keyboard may not work correctly.



CAUSE
This behavior may occur if the USB Host Controller in the computer uses the Open Host Controller Interface (OHCI).



RESOLUTION
To work around this issue, connect the keyboard to both the USB and PS/2 ports on the computer.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Additional query words: 1.00 mnkpro boot process leds dark

Keywords: kbbug kbfaq kbhardware kbpending KB237606

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