ED, Are you referring to the acres showing on the summaryIJ We are running the the 2000 version with updates in 2003 and it does not show acres on the map legend. The difference between recorded acres and actual field acres can be several things. Such as error in calibration, taking less than a full swath with a platform ( we set ours for 1.5 ft less than actual header width),setting to turn on and off recording is set to high or you are lifting or header late or dropping it earlier. Mainly the reason is that if you are using actual FSA acres they tend to be wrong. There also ar a lot of glitches in the software and it is very user unfriendly. The new software out this year is by Ag lleader and is suppose to have a lot of improvements and a lot more user friendly. However, CIH is quite proud of it and wants $350 to upgrade.