If there is a bug when selecting indicators, this is because you made an 
update containing new indicators. Solution : recompile the program with 
QTStart.bat
If the compilation process gives you errors without changing code, maybe you 
need to remove a previous installation of MinGW which conflicts, and remove 
its PATH.
QChartist must be compiled with the built-in MinGW installation included in 
C:\QChartist\MinGW