When you open the device manager, does it list anything under portable devices? If so....
1.) Right-click on the device with the 700 docked and select uninstall. It should have the device listed as whatever you named the 700 during setup. My guess is that since Vista isn't seeing it, it will list it as an "unrecognized" device.
2.) Unplug the 700.
3.) Do a soft reset.
4.) Reconnect the 700.
