A new major update of GHGenius has been posted. It includes new features, pathways, data, and bug fixes.
Microsoft has recently been rolling out changes to how Office handles macros in files downloaded from the web. Depending on your version of Office, you may need to take new and extra steps to allow the macros in GHGenius. Microsoft has provided a page with many details on this change, and most users will need to follow these steps to allow macros.