Just a few questions. 1- In the Vue user guide(pg. 254) it says that there is a sample DEM on the extras cd. I looked on both disks and didn't find any DEMs. Did I overlook something or are they really missing? 2- Can anyone recommend a good site that has free DEMs? i searched the net and found alot of stuff but the files i downloaded are .ddm, not .dem. and wont work. Thanks