this is annoying.
the acpi do not have any thing with this.
the device manager in vista 32-bit shows usb drivers are up to date. then a driver tool says it is not updated. i can't get latest driver for the usb device even after hour of search. and i won't pay 39.99 for driver update tool.
Sounds smart since a driver update tool which is asking for $39.99 is most likly a virus you have on yuor system.
Intel does not charge for driver updates.
What system do you have?
What keyboard are you using?