Thanks ryuu123 for all your help!! I installed Snow Leopard on a Vaio PCG-1P1L I used an external USB disk (as I couldn't get the OSX into an 8GB Pendrive) and it started beautifully. With the instructions provided by padebije (thanks for your help too!!) I got it running!!!! But after this... 9. Install 2 kexts (GMA500BacklightDisplay.kext and VoodooHDA.kext) with Kext Helper b7 10. Open Terminal 11. Delete AppleHDA.kext as superuser and rebooting... I get kernel panic (unidentified processor) Any help please!!! I loved it running with Mac OSX Thank you all!!