That message will only ever happen on the trial version. You need to be installing the version using the installer from the
members area. I have not had any other users experiencing the full version being installed as the trial and it has not happened in my testing, it just shouldn't happen.
If you want me to do it for you you can send me your TeamViewer login details and I will do it but really all you need to do is get the latest version from the members area and install with that. You can download TeamViewer from
here