when i was looking some pictures in the iphoto, i didn't even connect to the internet, however, the screen suddenly black out, and i got a error message saying "you need to restart your computer. hold down the power button for several seconds or press the restart button". i've tried to hold down the power button to restart it quite a few times, i still got the same black screen with these messages, and i don't know where the restart button is. could anyone please help me to save my powerbook, many thanks.
thanks for your advice. my powerbook is not connected with printer or network hub...etc. it is on its own. however, i had extra ram installed, but it was more then 6 months ago! i've tried to hold down the power button then shut down the computer, and i turned it on again, but i still getting the same error message, any ideas why? many thanks.
possibly the RAM, sometimes it just needs to be reseated in the connector slot
that kind of a crash could be caused by different things - RAM, hard drive, logic board and sometimes the software, as a guess it's a hardware in your case, maybe contact qualified service provider in your area since restarting and crushing can damage files on the hard drive and if you have important files on the drive you don't want that to happen