I have a Macbook here that will turn on, battery is fine, and AC adapter is fine. Problem is, after it turns on there are no visuals, the monitor won't kick on for anything, and my CAPS and NUM locks won't light up when pushed. HDD is spinning, as well as the fans.... and suggestions? i've tried pulling the HDD and the extra RAM. Could it be the OS? or is it probably my MOBO. Any suggestions and or links to other forums would be much appreciated.