I did email signatures for someone, and they're getting  whenever they create a new email. It's not in the html code, and I've tried changing the coding to UTF-8 without success.

Any advice?

run into this all the time at work with people saving files, it has to do with encoding:http://www.walkersoftware.com/programming/60/three-little-characters-i%C2%BB%C2%BF-designed-to-make-your-life-hell/

I've had a look at the client, and it only affects Outlook 2003. 2007 is fine.

Even if I match the encoding from 2007 to 2003 it still has no affect.

Often times I need to open the files in notepad++ and go through the different encoding options accessed via the "Format" choice at the top. Either that or put the file on a unix box and vi the file (no access on the servers here to pico or emacs)