So sorry Mark, Have you tried to delete the scene.prv??? Have you put in the env.vue file I've sent you? If it doesn't work this way, save your scenes, save your plants folder somewhere, clean your Register from e-onsoftware and Vue, delete all Vue.reg and Vue.ini files in the Windows folder and re-install from the beginning. Open Vue and use it 1 minute before you install the 4.12 update. Make sure you have not download by accident the 4.12 update for MAC (it happend to me). Before you install the 4.12 update, save all files that are OUTSIDE of any folder in the Vue d'Esprit folder to a separate, temporary folder. So you can put them back, if you have again a problem with the update. But I'm sure we will find a solution. Sorry to be a little short, but I have some friends at home. Anyhow, I will continue to answer you. :-)Guitta