Hello! First, my english is bad, because i am Polish. I installed Mac OS X 10.6 Snow Leopard, and the sound wasnt working, so i installed 10.6.7 Combo Update. Now, USB Ports doesnt work, and sound doesnt work, too. I am using Gigabyte GA-8I915G-MF Motherboard (sound: Realted AC97) and i cant find Mac OS X 10.6.7 drivers for USB and sound. How to repair this problem? I need USB and sound! Thx for help.