Cannot Install. Can't see selected application

Hello,

I am still in the stage of installing mathCAD. When I am in the wizard, I am unable to see any applications to select in the 3rd stage. (Application Selection) I can only see where the default installation path is and I am also unable to see where I can browse another path if you have that setting. I hope you understand my problem and able to fix this or send another installation folder that doesn't have this problem. Thank you in advance,
Kind regards,
Billy