FYI:
The included software for the Mitsubishi Diamond Pro monitor with SpectraView color calibrator installs the needed inf files for the USB devices in an unusual location. Though the instructions say to install the software after pluging in the USB devices, I recommend doing the reverse. Then, when Windows is looking for the inf for the USB devices, point it to the .../Program Files/SpectraView directory that was installed on your computer. Windows will default to the WINNT/System32 directory as that is where they should have been installed, but a simple redirect will save you a LOT of frustration