I have a Microsoft Arc keyboard that has mysteriously stopped working. It used to work fine, but know it doesn't work at all. I get no notification that a USB device has been plugged in when I plug in the transceiver. When I uninstall the IntelliType driver, the keyboard shows up as a HID Keyboard Device in Device Manager, but doesn't work; when I install the IntelliType driver, the keyboard disappears from the device manager. I know that there is nothing wrong with the keyboard itself because it works fine in my other computer.
I have a Lenovo x220 running Win7 x64.
Any help is greatly appreciated.
Thanks for this - popping batteries out and back in again worked a treat !
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Sorry this didn't help.
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