I'm looking for a sound driver for the Sony vaio, PCG-Z1XGP. The sound was working fine, until I replaced the hard drive. I was told the 'VGN-Z1' is the same as the 'PCG-Z1' so I tried downloading that sudio/sound driver. it did not work. It said "THIS UPGRADE IS NOT INTENDED FOR USE WITH YOUR COMPUTER MODEL" Could I please have some help with getting my sound working again.. Thanks! Tbh, I'm not too smart with this kind of thing. So detailed instructions or whatever would be nice.