Thanks to everyone who's helped me out on this. I've set some of it up and is starting to look good!
Many Many Thanks

Hi, I'm kinda new to Anime, and would very much like to create a heat haze for a desert scene. I had a look at the files hoping i could deconstruct them and reconstruct something similar for my project... but it was beyond me! I couldn't make head nor tail of it, and couldn't work out how you'd done...

Thank you so much! Worked for me!
Sorted out the crash problem totally.
Much appreciated