Walther if you have configured Vue to backup your work, you can find in your Vue folder a file called "deer_at_dawn.bak". Rename that folder with the extension *.vue and then open it. You only will have lost a little of your work. This happens sometimes that vue cannot open a file when the saving has been interrupted for any reason. Always create two savings of all your work. Also you always have one which stays OK. I'm sorry about that, but I cannot help more. Hopefully you have a backup file:-) Guitta