In Version 5.2 and previous versions back to 1999 (Corrected in Version 5.3)

• A bug exists in the grid generation module that manifests itself typically as differences in the placement of unevaluated grid intersections around the edges of the generated grid or in areas where there are no data points.  (That is an oversimplified description of the results of a programming bug - an array index overflow in areas near the edge of the grid or the edge of areas where there are no data points and grid intersections are left undefined). My thanks go to Matt Gessner, a software engineer from Ohio for identifying and correcting this bug.
  

In Version 5.1 (Corrected in Version 5.2)

• A problem exists in the colour legend which causes zero to be displayed as a very small number (e.g. 0.1E-09) under some conditions.
  

In Version 5.0 (Corrected in Version 5.1) 

• North South and East West was incorrectly labelled if  Corner Coordinates were displayed for lat/lon data. 
  

In Version 4.6 (Corrected in Version 4.7)

• The introduction of labels in the output for DXF Contour lines caused problems when attempting to select one entire contour line at a time. Version 4.7 introduces an option to correct this problem.

1. It is possible to re-read an input file by using "#" as the file name. For example:
   
   Edit input position 1 2 4         // Read z coordinate from 4th position on the line.
   Input File Metric "*"              // Prompt for the input file name.
   Function Copy Grid to color.
   Edit input position 1 2 3         // Read z coordinate from 3rd position on the line.
   Input File Metric "#"               // Reread data from the same input file.
   
   The above example would show the z data from position 4 as colour variations and the data from position 3 as contour lines.
   
   
2. If you want to use a comment with one of the input file commands the file name must be enclosed in quotes. For example:
   
   Input File Metric "mydata.txt"   //  This is a comment.