So I went to open an drawing file and got this message:

"The document being opened references a file with the same name as an already-open document.

The internal ID of the file, does not match that of the currently-open document."

But... I have no files "currently-open".

And when I tried closing the file, it gave me the exact same error message... before asking me if I wanted to save.

I'm not opening a document SW I am trying to close it!!!

I even shut down SW and restarted it, but got the same result.

What's up with this file?

Why is SW being silly?