nice Lokasenna ! meanwhile i noticed that when adding values of 10 ~ or more for padding , the checkbox and also the radio has strange behaviour you click on D , C gets some times checked, Click on C checks D same times, and so on
Can you check if you get the same?
In example:
GUI.New("chklist", "Checklist",1, 30 ,20 , 100, 150, "","A,B,C,D","v", 20 )