Here it is, a whole day of work just to get this to work properly. Full QE/CI support for Lion for the GeForce GTX 550 Ti with 1 GB memory. You need to copy the files in their respective folders as depicted in the compress folder in this download. I had to add the EFI string to the chameleon boot loader plist file in order for the Natit (nForce Enabler) to work. The file is included and if you simply want to keep yours, just copy and paste the bottom and the string onto your org.chameleon.Boot.plist files in the Extra folder. Also included is a working copy of the OpenGL to work with this files, downloaded from here. Proper credit goes to all of those people who worked and created this files. All I did was change the Dev ID to work on my setup and put them together. So here it is, if you have questions, feel free to ask, but please only for this card. Works with 10.7.1 as well.