The design and implementation of the program is dead wrong. I do not live in US and my local settings on my PC follow European standards. I am not able to input any fractional value like 0.17 or 0,17 or .17 or ,17 (example: Qes). The program converts everything to integer values. As soon as the devopers amend this error, I will be back for further testing.
Just downloaded the program the other day and started using it yesterday. I love it as it is easy, simple to use and it has lots of power for a free program.
Still not for PCs using European standards. Too bad.