Dear Dave,

> This appears to be a file system problem. Have you checked the basics?

I would agree with that, but...

> Is the file read only - I always forget to remove this check when I
> transfer a file on CD.

...we have transferred the file via email and zipped/unzipped it.
Neither process marks a file as read-only, AFAIK.

> The user does not need access rights to the file but System does
> (assuming that Firebird is running under that account). Have you
> checked that System does have full read write access?

Who or what is "System" in this context? The user that owns the
Firebird service running?

Anyway, at least the original file would have to work, wouldn't it?
Renaming and re-renaming ought not to change any access rights for anyone.

Stefan