I am going insane in the membrane here, your guide is the best I have found. Simple to follow although once I have completed this task I want to post an my own "Idiots Guide to G41M-ES2L", all is working except audio ALC888B. Which there is a number of version floating around like "http://www.insanelymac.com/forum/index.php?showtopic=182655" . Which simply do not work mainly because people have posted a fix that they themselves have not actually tried. I have a G31M-ES2L but 2x G41M-ES2L which seems to still be available to purchase where the G31 is not. Can you shed some light on this? and maybe point us to a fix that works with your bootloader and the ALC888B codec. Thanks a million.