@cam1981
Maybe you've tried to use the entire EU map as one image file. At over 3GiB that would well-exceed the GMXT .img file size limit of 2GiB minus 1 byte. If that's what you've done you can generate smaller images under 2GiB from the PC Install Version/gmap folder using MapInstall or download one or more of the regional images from the current map thread: [Only registered and activated users can see links. ]. You can have several detail map image files with GMXT, see [Only registered and activated users can see links. ].