Scratch the previous message -- I was using IE 9 when running localling, and Firefox 5 when looking at our staging server.  I've done some more testing, and the problem isn't local vs staging, it's browser version.  The save function does not work in IE 9.  It works fine in Firefox 5 and Chrome 12.  Also, IE 9 in IE 8 mode seems to work OK too.  It's just IE 9.