The computer screen went crazy with all sort of horizontal purple lines. It then shut down. Upon restarting it, I am able to hear it booting up and all but nothing shows up on the screen. It's black! What's going on?
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Phyllis, you could try and a hard shutdown ihold down the start button until you hear the chime for restart NB any unsaved documents will be not be saved but the machine should restart. Hope this helps.
Try resetting the PRAM by turning on the iBook then holding option + command + P + R and wait till u hear another chime. If it still freezes, it may indicate an application may be causing it to lock up hold shift after you hear the chime to boot OS X into safe boot.
Some computer react this way when the logic board goes bad or have a defect in it.
First, Try this:
Remove the battery. Plug back in the power cord, then press and hold down the power button til you hear a loud beep sound. then release it. If the computer starts back up... Then you should be okay.
If not, it may has something to do with the logic board.
Let me know if the above works...
We may can try some other things if not.
You may have installed something in the startup items folder that your mac isn't liking.
When you turn the iBook on, press the shift key as soon as you hear the startup tone. hold it down until you see the gray apple screen. This will get you into safe mode, hopefully then you'll be able to fix whatever you did from there.
If you are still at a loss, get in touch.