This isn't so simple as it seems.i am sure if you go to itunes preferences, itunes wont show anything and also if you check Sysytem Preferences/spotlight under privacy tab it will crash the system.
I have a very similar pc, athlon 64 3000+ asus a8n-sli, nvidia 8400GS. Everything is working like on the old 10.5.8 leopard but I'm having a small problem with the sound. I can't change the volume from the slider or with my keyboard, when I move the slider, it goes back to it's position. Also it's really strange that I can use the slider from the audio preferences .
Could you try and tell me if that works for you? Also, could you upload your audio kext?
These problems along with volume slider can be fixed using marvins amd utility by checking patch all binaries and select the System/library folder.If you check specific folders it will just show a "Unable to determine encrypted files...." message.
HOWEVER if you do this front row will stop from starting. Havent found a solution on this one yet.
I know the folders that need to be patced with a cpuid to fix itunes and spotlight problem.But i dont know the folder for the volume slider problem in order to keep front row working.
And all this is happening due to kernel.When Voodoo releases a SnowLeo AMD kernel we wont have these problems and we wont need Marvins AMD utility.