If you are using the Marengo GPS Route Planner on Internet Explorer you may have noticed that, since January 8th (or thereabouts), you won’t have been able to click or drag any waypoints you lay down on a route.
This is a result of some incorrect data being updated by Google themselves in a recent update to the Maps service.
Fortunately there’s a fix. They’ve amended their error (today), but it requires that you do the following to make it effective:
Open up the route planner, and, while holding down Ctrl, press the browser’s page reload (Refresh) button. This will cause the cache on your browser to be updated and allow the Google fix to be used.