Loki's port of Soldier of Fortune has some rendering errors in the menus. Most notably, the scrolling text at the bottom should run as if through a marquee, yet shows up in front of parts of what it should be behind.
Further, there are black and white sections on the menus that shouldn't be there.
Also, in the timedemo I'm using (found here: http://www2.ravensoft.com/users/jscott/sof/timings.html ) there are some points where it looks like objects show through the fog when they shouldn't be visible yet.
Finally, and this isn't really a rendering "error", but the game is unbearably slow. It looks as though there is some serious bottleneck since increasing the resolution from 640x480x16 to 1280x1024x16 made the framerate drop from 8.7fps to 7.8fps (on a standard timedemo).