I also noticed that the Steam version is missing graphical options: of which I've read in the revies on here and over the internet.
I've installed my DVD version that I've bought back in 2007 and it has no issues of the Steam version like sound/music glitches, controller problems, characters/AI glitching etc.
Recently after notig that MUA is coming as a 'Remaster' I reminded myself about this game and started playing it again.