Yup your definately doing two things wrong.
1. Next time post in the URC Custom Pro section
[Link: remotecentral.com]2. If Vista did not find the correct drivers, just head over to your device manager and point the MX-980 to this folder where the drivers are stored,
C:\Program Files\Universal Remote Control, Inc\MX-980 Editor\Usb
and make sure you have windows mobile device center (WMDC) installed