Hi, thank you for your replay!
I don't know what's the problem, but I using the kext helper, the Snow Leo is immediately dead! Kernel panic!
I don't know how to set the permissions to the Kexthelper manually

I using the Chameleon Boot loader RC4. I writing this bootloader on CD...
Every starting, I put in this CD to the drive, and the snow leo is starting.
I try to the Lizard... I try installing the bootloader to helper the Lizard, but after starting Kernel Panic I modified the Boot.plist -> GraphicsEnabler -> Yes

So... I starting the PC, Chameleon CD put in the drive, F5, I replace to the SL DVD..
The installing is ok, no problem! Restart!
Chameleon CD is the drive, I choose the SL, starting, every ok!
I modified the ATI2000kext and ATI4600kext to the desktop. I copy in the System Library Extensions.
Now I get immediately an error message:
"System extension cannot be used..."
I try the Kexthelper without advanced install I get kernel panic.
So... what is the secret in the Kexthelper?

Thank you!

Mark