When asking for technical help at the very least let us know the version of firmware you are running.Cliff's Calibration (Mapping) Guide is a MUST READ: http://www.vemssupport.com/forum/index.php/topic,97.0.html
Make sure that you remove the old installation directory if you install another version of VemsTune at the same location.
Some database files are created after starting the application, those databases can change content/formatting with more recent versions, which can cause strange problems like this. If you properly remove the application before installing the new version, no such problems should exist.