I've got an HP WX4300 workstation running XP Pro SP3, and a USB keyboard problem.
No USB keyboards will work on this PC. PS2 are fine.
When I plug in
1) Microsoft Comfort Curve 2000,
2) Microsoft Natural Keyboard Pro or
3) generic USB keyboard with hotkeys,
XP displays the "Found New Hardware" wizard, and fails to find the correct drivers to install. On a working system, this wizard should never appear when plugging in a USB HID compliant keyboard.
-The USB ports are fine: all the above keyboards function 100% in the BIOS, as well as in Linux running from a live CD .
-I have tried all the USB ports on the PC, all function identically.
-The comfort curve 2000 used to work on this machine when directly plugged in, and when connected via a KVM.
-I recently removed the KVM from the machine, and that is when USB keyboards stopped functioning, either directly plugged into the USB or through the KVM.
-This condition exists in Safe Mode as well as in normal mode.
Steps I have done so far:
-In device manager: I have uninstalled everything mentioning "keyboard" "comfort curve" or "HID"/"Human Interface Device". Upon reboot, the New Hardware Found wizard comes up again.
-in device manager, I have also uninstalled all the USB Root Hubs. Upon reboot, the USB hubs reinstall as expected, and then the "New Hardware Found" wizard comes up again trying to find drivers for the keyboard.
-on a working machine, I noted all the drivers reported in device properties for the keyboard. I copied those driver files from the working machine over to the non functioning machine. Upon reboot/ reinsertion of the keyboard, the wizard comes up yet again.
-installed the intellitype manager. No success there.
I am 1 step away from levelling the machine and starting from a new install, but would prefer to not do this.
Any suggestions would be welcome!