Error when trying to install Uno rev 3 driver

I get an error when I try to install the Uno rev 3 driver. Windows says there is an error in the data. I have reloaded the arduino-1 software and I get the same error. A rev 1 uno works fine. Any ideas??

I fixed the problem by uninstalling the "USB Device" and plugged the Uno R3 in again. This time it installed correctly.