Hello! I'm having the same problem as TabbySan, and I have a Mac.
(This tutorial "update" sure loves being buggy doesn't it?)
Okay. Fixed for real. BUT I'm going to do a something lil extra before uploading it considering how many times I've claimed to have "fixed it" the last several days.
Next build will have a preview of what I've been working on coding. It's only up to the first horror cg though, so optional to see it.