Hi ppl. this guide is for those who have iPC 10.5.6 on their Acer Aspire One and want's to update to 10.5.7, first of:
download iDeneb 10.5.7 upgrade kit at demonoid, and here's what your going to do.
1.go to System/Library/Extensions and backup all kext,bundle,plugin with GMA950 named,as well as AppleIntelIntegratedFramebuffer and save it somewhere you can remember other than your system volume.
2.install the iDeneb kit you just downloaded "iDeneb.MacOSx86UpdCombo10.5.7".
3.press F8 on boot an then type "voodoo" without the quotes.Normally, it will restart twice and do not forget to type "voodoo" for the second restart.
4.once your in the desktop, open the kit again and launch "iDeneb.Tool.rev1". Under kernel check the voodoo 9.5.0 and install.Before you restart,delete or move to trash AppleIntelGMA950,AppleIntelGMA950GA,AppleIntelGMA950GLDriver,AppleIntelGMA950VAD
iver,AppleIntelIntegratedFramebuffer on your system/library/extensions folder.and then restart your system.
5.on successful boot, install the kext you have just backup earlier using kext helper b7 and restart.
check your graphic properties and see if Quartz Extreme is supported, and if it does then its perfect......