Hope you guys can help me.

I have fresh installation of Snow leopard 10.6 on my computer.
For installation I used iBoot, finisher without any problems.

After that, I updated OS to 10.6.5 and installed MyHack and Multibeast (System utilities).
Everything works except two things.

I can't boot Snow leopard from hard drive when iBoot isn't on DVD rom. Tried everything, boot reinstal Chameleon, downgrade, upgrade... nothing.
Works only when it boots something from iBoot DVD and then select my Snow leopard

Second thing I can't get on work is sound. (Realtek ALC892 codec)

So, here is my configuration, hope it will be any helpful answers.

ga-p55-usb3 (Realtek ALC892 codec)
Intel Core i5
GF GT 240