For the MSIWindOSX installation, 1. Use the Software Updater to update to 10.5.5 2. After restart, install the KEXTs for the display and video driver (AppleIntelGMA950.kext & AppleIntelIntegratedFramebuffer.kext) (Do NOT restart the laptop yet) 3. Run DiskUtility and run Repair Disk Permission. 4. Then cross your fingers and reboot.