Dogrules23

Fullscreen does work

No idea, it is an 11" MacBook Air though

I am using a laptop, if I do that then the text is backwards.

My game is upside-down, I updated LWJGL because it wasn't working at all and now it is upside-down.

It works now but it is all upside down!

I don't understand the Minecraft update LWJGL wiki at all, I downloaded it and I don't know where to put it.

Can someone help?!

I start Hexxit and it launches then the entire thing closes and nothing happens. I do use a macbook air and it was just recently updated.