Strange flickering green cast to screen.

The last I used my Powerbook it seemed to running fine, that was yesterday. This morning I was about to go out and went to unplug it from the AC adapter and noticed the fan running. I thought that was odd since I hadn't been running many apps nor was I asking much of it with heavy graphics. I shut it down and put it away. I booted it and the fan came on right away. As I logged in on my user I noticed green flashes starting to occur, at first they were slight and limited to random parts of the screen. But as those apps in Start Up began to open the flickering became more incessant and covered more of the screen. I powered down and by that point the images on the screen were entirely cast in green.

You MAY have a GPU issue, you can take it to an Apple Genius for a free diagnosis, they will offer options from there.
They have the tools and experience as they do all day/everyday, it will cost you nothing to find out, and then find out what it may cost to "make it right"

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