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PowerBook 15" - strange problems

Message #1 - Posted 2005/10/17 - Duncan Langford

PowerBook15, 1.67, 1gb, 10.4.2

Left to sleep, when woken it's twice gone to a blue screen, and remained there. Mouse works. Rebooting doesn't help - it just goes to the blue screen at the end of the booting sequence, before the desktop loads.

As I say, this has happened twice; each time rebooting holding down the shift key - and then rebooting again - restored things.

But yesterday it had a totally black screen, not a blue one; but, after repeated reboots, normal service was resumed...

Today the screen had automatically reset brightness to zero, and the 'brighter' key didn't work. It took much squinting and prayer before I could activate Preferences, and reset the brightness...

Any ideas as to what's happening? The machine is still under warranty, but, as it's now working perfectly it's hard to see what I can ask AppleCare!

- duncan

Message #2 - Posted 2005/10/18 - r3tr0

"Duncan Langford" <d.langford@ukc.ac.uk> wrote in message news:d.langford-ya02408000R1710051212050001@news.ukc.ac.uk...

PowerBook15, 1.67, 1gb, 10.4.2

Any ideas as to what's happening? The machine is still under warranty,

but,

as it's now working perfectly it's hard to see what I can ask AppleCare!

Well if you feel adventurous you could reload Mac OS X and see if it goes away... Other than that it is totall a crap shoot as to what is causing it...

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