[iMac] strange screen behavior + loud fan

[Raymond P Reedy]

On Jan 13, 2005, at 9:50 AM, Bill Planey wrote:


> I've had my new 17" iMac G5 for about 3 weeks now... This morning to 
> wake
> the screen up (the system is set never to sleep, just the screen) I 
> moved
> the mouse.  As it often does, the screen comes on, then flickers black
> again, then a few seconds later comes on for good.
>
> This time, however, something was really wrong with the colors - it 
> looked
> like something had been posterized on a 16 color palette in photoshop.
> Changing settings in the Monitors preference pane changed nothing - the
> garish coloration continued through a resize in monitor depth, and 
> through a
> change in calibration choices.  I made a couple screen shots.

I had a similar problem with my son's iMac G5 and I attributed it to 
some classic pinball application changing the color/display settings. 
Rebooting and setting the screen preferences fixed it.

Ray Reedy