The order of the questions matters under Inquisit 6 (consistent with how order of stimuli in /stimulustimes or -frames matters under all versions of Inquisit).
For example, here you are *first* drawing two radiobuttons elements
/ questions = [1=baby;2=car_dog;
and then various images (with or without captions) on top
/ questions = [1=baby;2=car_dog; 3=babyIm;4=car_dogIm;5=questionA;6=questionB; 7=copyright_top
The images drawn "on top of" the radiobuttns can overlay and obstruct the radiobuttons, making it impossible to access them. The fix then is to reorder the questions, i.e. put the images, etc. first, and the radiobuttons last:
/ questions = [1=babyIm;2=car_dogIm;3=questionA;4=questionB; 5=copyright_top; 6=baby;7=car_dog
Many things in the script, in particular various font sizes in /fontstyle and /responsefontstyle attributes are not specified in percentages, so these things will not scale relative to display size.