I have been able to get 10.5.8 working on my Lenovo s10. Airport works. The Wi-Fi card shows up as an Ericson F3507g. Haven't quite gotten that to work yet. Sound is another issue. In iTunes I can play sound through the Airport Express speakers just fine. But nothing from the built in speakers. I've installed AzaliaAudio and Audieee and set Audieee to internal speakers but still no sound. m PS Thanks to everyone for all your input on this. The 10" MacBook is blowing minds around here!!!!