I have a strange problem with my 2008 iMac.
At first I thought it might be the GPU as I have the dreaded Geforce 8800GS.
However now I fear it may be a screen problem. The first symptom was that the brightness controls now no longer work (both on the keyboard and in sys prefs).
Now when I start the machine from cold the backlight flickers on and off for around a minute, as soon as the system warms up it will stay on all day and everyday no matter what I do.
When it does flicker black I can still see the desktop running in the background and the system doesn't freeze as I can move windows around etc.
So does anyone know if it's the inverter cable or the inverter itself?
I'm hoping it's the former as I can source the cable relatively cheaply from the states. (Unless someone knows where I can find one in the UK?)
I just find it weird that the machine will function fine (sans brightness controls) once it has been running for a few minutes.
Any info would be great. I've done extensive googling on the subject but cannot find anyone who describes my problem exactly.
Thanks.
At first I thought it might be the GPU as I have the dreaded Geforce 8800GS.
However now I fear it may be a screen problem. The first symptom was that the brightness controls now no longer work (both on the keyboard and in sys prefs).
Now when I start the machine from cold the backlight flickers on and off for around a minute, as soon as the system warms up it will stay on all day and everyday no matter what I do.
When it does flicker black I can still see the desktop running in the background and the system doesn't freeze as I can move windows around etc.
So does anyone know if it's the inverter cable or the inverter itself?
I'm hoping it's the former as I can source the cable relatively cheaply from the states. (Unless someone knows where I can find one in the UK?)
I just find it weird that the machine will function fine (sans brightness controls) once it has been running for a few minutes.
Any info would be great. I've done extensive googling on the subject but cannot find anyone who describes my problem exactly.
Thanks.