i'm on pc. Whenever i open the VN it just remains black (no logo, no music, nothing) and if i click on the window, it stops working. However if i don't click on the window it remains black forever or until i close it.
https://www.renpy.org/doc/html/display_problems.html
Give the suggestions/directions in this link a try and let me know if that works for you. (If that doesn't work, I'm not sure what else we can try without more PC information.)