Hello, Hopefully someone can help.. I have a MacBook - Core2 Duo, 2.0Ghz, I think a rev B. running 10.4.10 It starts normally with the grey screen, the the blue screen, then the splash screen & the progress bar. Then.. Instead of presenting the loging screen, it goes blank with the pointer showing only. I booted from Cd, checked the hardware - seems ok, i've archived & installed the OS, no difference.. So, now I'm stuck.. Hopefully someone can advise.. Many thanks in advance.. Charles..