Working well now. I had to call Tech Support to load the software because the big casing on the logger may not seat properly in many USB slots. If it is not fully seated, the software won't install and doesn't give you any indication why. There was also no indication on the package that the user's manual was on the CD.
The button you push to remove the casing broke on the first try. You need to push this to install the battery. The little piece of plastic that locks the casing is very flimsy.