Nvidia 6600 GT & USB 10.5.2

[Shealock]

I have a motherboard Asus A8N32 SLI Deluxe (NFORCE 4) and install Zephyroth 10.5.2. Sounds OK, very good installation, etc But I have 2 problems:
- USB doesn´t work.
- VGA Nvidia 6600 GT with Titan can change resolution but not QE/CI

I try to disable USB Legacy in BIOS ---> USB KO
I try to install Titan, Natit, NVinject ----> QE/CI KO

Anybody can help me?
THANK YOU!!
(sorry, mi English is not the best :S)