Could be a setting problem in WD. One test you can try is do a fresh install of WD to a new location, then before you run WD create a files called 2wd.txt in the WD install directory. This will allow WD to run without messing up your ini file from the original install. If it works then you know the original install has a setting problem and your computer and drivers are ok.
Here is an FAQ on how to do this test…