Ok guys I really want to use the on board Radeon card built into my machine and I know some of you have already made some attempt on getting this to work with: Adding ATI card IDs to ATI.c - update (8-Sept) viewtopic.php?f=119&t=19330 On page 37 (I think) Notshy says that this work is focused on the desktop carts not the mobile cards so we kind of left it dead.... Yesterday I was inspired to google the card working in lion (due to iMovie taking 50 hours to import 1:34 hours of hd video) and did come across a result of it apparently working... According to the topic the built in display doesn't work with the radeon (no big deal we can use the hd3000) but it does work with QE/CI if booted on hdmi. I've tried installing the files I downloaded from my google find, the alternative bootloader did boot but did still get the "unsupported card!" message on boot and it says the ati6000 controller kext could not be loaded. What did other people get when they tried notshy's method?? My google find: http://www.insanelymac.com/forum/index. ... pic=253557 Instructions aren't exactly clear but hopefully 1 of you might be more in tune with the concept so can explain it step by step for the rest of us if you got it to work.... IF YOU ARE GOING TO TRY AND DO THIS YOU WILL NEED TO MOVE / DELETE YOUR DSDT OR YOU WILL NOT BE ABLE TO BOOT WITH THE GRAPHICS CARD ACTIVE. EDIT since writing this i've realised my card is a 6490m not 6470m though it was listed on the site as 6470m try using CPU-Z to check.