Dreamweaver Creates Weird Filenames on a MAC

A co-worker has been having problems using DW MX 2004 to edit html files.
She's noticed that DW is creating duplicates of files (I'm assuming they are
backups of some sort) with weird filenames. e.g. When editing index.html,
there are versions created with filenames like: #index.html# ._index.html
index.html~ Does anyone know why DW would be making these copies? We have
several users using DW 2004 and no one else has this problem. All but her use
Windows PCs. She uses an iMAC. She also noticed that when editing these new
files in vi (she's a unix person by trait), it causes problems (such as not
displaying because the file is too long). Any ideas of what is causing this?
We haven't been able to find a setting in preferences that is doing this, but I
might have overlooked it. Rob

You said your co-worker was having problems using DW MX 2004?? But further
in your post you mention that she was using 'vi' to edit the pages. I am not
too familiar with the unix environment; but if she is the only one having
problems and all of the others are PC users, then it has something to do with
how the unix environment is saving/viewing the files. The index.html~ is some
kind of temporary file that is created by the unix environment. Also you can
name files differently in Windows then you can in Unix; you can use longer file
names in Windows and Unix does not allow the use of longer file names. You can
also get away with using some special characters in your file names in Windows
that you cannot use in Unix. So if your files have long names and use some
special characters, then unix will truncate the name or replace with other
characters. I also don't recommend her going back-and-forth between 'vi' and
Dreamweaver to edit pages. Like I said I am too familiar with the Unix
environment, but I have heard through others that the above can be an issue.

I found some more information on the internet regarding the files with names -
i.e. #index.html#, _index.html, index.html~. These are backup files created
in the Unix environment. They are NOT created by Dreamweaver. Unix
Environment: Filenames ending with the tilda (~) symbol, or beginning and
ending with the hash (#) symbol, are backup files. A file whose name ends with
a ~ symbol is created every time you save changes to a file. This backup file
will always contain the next-most recent version of a file. Similarly, a file
whose name begins and ends with the # symbol is an emergency backup file
created when you exit 'vi or Emacs' without saving changes. These files can
be deleted as they are of no use in Dreamweaver and cannot be opened in
Dreamweaver. Hope this helps. pattianne

Hi pattianne, Thanks for the info. I've passed it on to my co-worker. I have
gone between DW and vi occasionally as sometimes when I need to make a quick
update on our live site, it is just easier, but I haven't run into these sorts
of problems myself. I appreciate your research re: those filenames. Thanks.
Rob