Latitude D600 - USB Power Surge Error???

I keep getting this USB power surge error on my D600? I am running Windows XP Pro SP2 and have not plugged any devices, mice or anything to this laptop? I went through the forums and found references to it but everyone involved installing external peripherals. I have not installed anything it just started happening? If anyone has any idea what I can do please let me know. Here are some of the things I have done to see if it would stop. I removed my Cd-Rom, I disabled USB emulation in BIOS and I have unistalled the ports from device first root hubs only then the controllers and hubs still getting error? Thanks...
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