Random images flashing on screen

Question

Hey folks,
I have a 1 month old powerbook G4. I have a recurring problem that is hard to describe. I have images that look like other windows that are open in the background that are open flashing up in the bottom third of my screen. They seem to go across the whole screen but are hard to describe as they only appear for a split second. They may not be other windows - it could be blocks of colour. This has happened in imovie, photoshop and when using explorer. I've been on to apple tech support and they said they have never heard of it, and to check here and keep a log of it. I cannot replicate this flashing but it's doing my nut in. Anyone heard of this, or how to fix it or to make it happen. Any help would be appreciated.

Answer 1

I've a similar problem.
It's difficult to explain, my problem is random, during only few seconds (max 20 secdonds just one time) and for one or two days it's all ok.
The problem is this: the screen change colours, the colours change flashing and after few seconds all return to work normally.
When the problem show, i've rebooted powerbook and i see that also in the apple-initial-screen there are a strange colours and pixels. I think that this is an hardware problem.
I've taken poberbook in an italian Apple Center for repair it.