Ok... I am truly agry at the moment :P Speedstep doesn't work and this is why we have problem with changing CPU frequency when booting with battery + I still cannot get audio to work. flip360 - do you have correct CPU info when you boot with charger unplugged? I mean in 'About this mac'. If yes - I would love you until death if you could upload all the files you use at your 10.6.3 mac incl. SMBIOS, com.apple.boot.plist and others + info where to put it. I am sure that others would appreciate it too since mao_red is also having this problem from what I remember. You are the only one who claims to have a perfect hackintosh, so please help us, it shouldn't take much time :P