Someone gave me an HP laptop runnning windows 7 home premium. The keyboard had to be removed because someone had spilled something on it and it no longer functioned. Because of this I have been trying to use a usb keyboard to no avail. All other usb input devices work fine. I have tried different keyboards both wired and wireless with no luck. I have reloaded drivers and even done a factory restore but still nothing. Any input on what the problem might be or how to fix it would be appreciated