This looks like the kind of mess you get when something in an update conflicts with a previously existing version. That's why I long ago quit trying to update a working installation.
Start with the 1.30 installer and the latest maxgui zip file from the product updates page. Run the installer and tell it to install to a new folder. I like to call mine \BlitzMax130 to make the version easy to recognize. Then add maxgui to the \mod folder as usual.
It's okay to have multiple versions installed. I probably have about five of them right now. Occasionally I clean house, deleting the very old versions.
Start with the 1.30 installer and the latest maxgui zip file from the product updates page. Run the installer and tell it to install to a new folder. I like to call mine \BlitzMax130 to make the version easy to recognize. Then add maxgui to the \mod folder as usual.
It's okay to have multiple versions installed. I probably have about five of them right now. Occasionally I clean house, deleting the very old versions.