Colors of tracked changes depend on the user's settings. If your boss'
aren't showing in red, then that's a function of the settings on his
computer. By default, changes vary per author, although a user can set them
so that all changes are the same color(s).
If he's using Word 2007, in the Review tab, click Track Changes - Change
Tracking Options. There's an equivalent setting for Word 2003 and earlier,
but I don't remember the precise instructions.
