Please could you post the anser as I am now having the same issue.
John's project was damaged and he had to revert to his last backup which he had made the previous day.
Here's what Jim told me that helped:
> Deleting the .CDX files didn't help, and I couldn't get TMG to a state
> where
> I could actually restore a backup. I actually downloaded and reinstalled
> TMG7, in an effort to try and restore the project from a backup, but it
> just
> goes back to "Alias "File_N" not found". So I'm in a loop and can't get
> out.
The problem is that the Welcome window isn't enabled and, when you start the program, it is opening your damaged project.
Edit the app.ini file in the user program data folder and check the [startup] section (in the beginning).
Set the welcome entries as follows:
[startup]
Welcome=2
WelcomeBack=2
Now you can start the program and restore your backup from the Welcome window.
Jim