This is just a rewrite of my previous post, but I'm posting this again to see if this gets seen by anyone who is interested to help.
Basically, I installed Sculptris, got the execution file, now it won't open at all. I tried running it as administrator, but that didn't work, and when I tried to open it, my screen flashed the colour black and then the next thing I know is my screen resolution changed completely. I have a YouTube video to show what I mean.

This genuinely makes me upset.