I have a Dell PC running XP. The keyboard will not work and locks up the PC if you touch any key. I have booted in safe mode and removed the keyboard (it shows conflict with mouse). When XP detects the key board and attempts to reload the drivers I get the following message: "Windows cannot load the device driver for this hardware. The driver may be missing or corrupted. Code 39." I have got the latest drivers from the internet and attempted to load them......same error message. I have not made any hardware changes....running all items that shipped with the computer and had been working with no problems for 8 months. I hope someone can HELP ME!!!! BTW I have tried using a different keyboard, same result. Keyboard connects via standard PS2 plug.