USB Keyboard stopped working...help plz!

[Silvermirage]

I recently bought a 3dConnexion SpacePilot and after installing the software, the keyboard (Logitech G15) wouldn't work any more. I try to re-plug it in and I try restarting. The device manager recognizes it as an "Unknown Device" in the USB panel. The device manager also sees my keyboard as the laptop keyboard on my dell e1705 (wich works, but doesn't work as well).

I tried to reinstall some drivers for the keybard, but there really weren't any that worked. What cna I do?