Although we covered numerous important tips & tricks in our latest book, there were still few tips that weren't mentioned, due to the final page count:
1-When network rendering, at times one may encounter missing bitmap errors whilst rendering. To correct this, simply check the include maps function on the options group from the network job assignment dialog; however it may slow the renders slightly. The rule of thumb is to avoid having missing bitmaps or uvw maps in your Max scene.
jamiecardoso-mentalray.blogspot.com/2010/01/mental-rayvaluable-tips.html