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Dan - Master Tech
Dan - Master Tech, Mac Support Specialist
Category: Mac
Satisfied Customers: 1904
Experience:  I have worked with Macs going back to the IIE. Installation, diagnostics, repair of all variations.
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I have an apple iBook G4. I can plug it in to the router and

Customer Question

I have an apple iBook G4. I can plug it in to the router and access the internet with no problem at all but when I try to use any wireless router, my screen goes dim and I get a message that I must shut my computer down by holding down the power button. This just recently started.
Submitted: 6 years ago.
Category: Mac
Expert:  Dan - Master Tech replied 6 years ago.
GreetingsCustomer a couple of questions so I can get a better idea of your situation. What version of OS X are you using? When the problem started did it coincide with any other event such as a system lockup or crash, update, install? Do you have an OS X disc to boot from if you need to?
Dan
Customer: replied 6 years ago.
I have version 10.4.11. I don't have a disc but might be able to get one. Nothing else took place. Just started doing it one day.
Expert:  Dan - Master Tech replied 6 years ago.
If you had a disc I would suggest doing using the Disk Utility to perform a disk repair. In any event, you can try running a Permissions Repair from the Disk Utility to see if that helps. It's located in Applications=>Utilities folder.
Dan
Expert:  Dan - Master Tech replied 6 years ago.
If you are still having problems please let me know. If so, your airport card is most likely at fault since the iBooks have a history of that problem causing a kernel panic and locking up. If you can get the hardware test disc that would help to confirm this, otherwise you may just have to buy another card.
Dan

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I have worked with Macs going back to the IIE. Installation, diagnostics, repair of all variations.