I often use color mapping templates that Alan posted a while back. I found that sometimes the max/min elevation sets itself to the elevations in my surface, and sometimes defaults to a different elevation (-174' min 174' max if I remember correctly). I can't figure out if I'm doing something wrong or if this is a bug. It seems to be random. Nearly all of my work is below 100' in elevation so I either have to use the default color mapping when this happens or map my own colors. Any ideas?