That version is several years old, as the latest version is 3.043.066. I believe 3.042 puts it back around 2011 or 2012. The versions I had trouble with were about that age. Just for testing, you might want to download the current version from the ArtSoft website, install it to another directory, then copy the XML file from your Tormach install to that directory, and see if that will run. With the Tormach installation, there may be more (like screenset files and resources) that need to be copied over, since they do so many customizations.
Regards,
ray L.