Okay, I have a MacBook Pro that's running Windows 7 on bootcamp, DayZ Mod works(ish), so the compatibility part isn't a problem. But here is the computer stats: Laptop 1280x800 Intel Core i5 Processor 2.3GHz 2 Core Intel HD 3000 512Vram 8GB Ram If I've left anything out let me know and I'll try to find out the details. When playing DayZ Mod on Arma, it was odd because high setting and very low setting had similar FPS, high was a bit lower. So I don't know. Just don't want to waste £20. :) Thanks all!