Maybe the buffer set can be the problem. I use to set it at 32, to be able to record without latency problems in the headphone line. And I was expecting to keep this buffer set to all operations. If I set the buffer at 256, a small audio delay appears in the headphone line, and it is impossible to record anything.
With 32 it's ok. But I think it is the limit of our system, isn't it?
I'm trying to believe that this Mac quad core 2.8 can handle all my productions, withou the need to buy an expensive PT HD or another stuff like that.
My old system was an Power Mac 9600, with two 882 Digidesign, Mackie mixer, ProTools software, etc.
I change all for this new system and Logic 8. And they are perfect for me.
But I'm dealing with these small problems yet.
I'll try all of your suggestions.
Thanks again !