Update 30th August 2015 - Thanks to @tmethei, @the11thmoon, @wendyp7 for detailing their graphics cards and posting how they fixed their issue. We finally now have a fix that works! I've written a re...
Start by reading the instructions. Then make copies of the files you'll need to edit so that if you make a mistake, it won't matter. Then use the instructions to edit the files.