Have you tried here? http://www.insanelymac.com/forum/index.php...t&p=1290038 I am running a T400 at full resolution - there is no QE/QC, and the external display is not working, but it sure beats the 1184x862 or whatever the garbage it is without the driver. I used iAtkos v7 and installed voodoohda for the sound, VooDooPS2 for keyboard/trackpad support (no trackpoint)- speakers don't work but headphone out does - might be able to fiddle, but I never listen to the internal speakers anyway. Purchased a Belkin USB WIFI F5D8053 ($50) and it runs with the Ralink drivers selected from iAtkos v7. I am pretty happy with the setup, I would really like to get monitor out working, my 22" full HD monitor is just going to waste when I run OSX, but I will live until a solution is found. Hope this helps. I responded to someone else with the following, I don't know about the radeon HD 3450, but my Thinkpad T400 has a 3470 and it runs at full resolution, just no HW acceleration: http://www.insanelymac.com/forum/index.php...t&p=1290038 has links for a radeon driver that works for me - good luck.