Removing default hyphens from file name in "Save For Web"

I just got a new computer at the office and all of my old settings were removed with getting the new PC.

When using the "Save For Web" command, Photoshop inserts hyphens where I type in spaces in the file name. So, how do I change it so those hyphens are not inserted?

I know I did this three years ago when I started originally (and it stayed that way all this time), and I've looked everywhere without success.

Thanks for the help.

In the Save for Web dialog, the flyout arrow by the file type. Output settings>Saving Files. Filename Compatibility Uncheck Unix.

Thanks so much for the assistance! That did it.

if you plan on using them ON the web (rather than just using the save for web feature to strip out meta data and check quality) spaces are a no no. they'll be replaced when served from a web page with %20's. ...