Currently Being ModeratedOct 14, 2012 8:33 PM (in response to Rambling Joe)
The picture in this thread is very similar to my problem:
I didn't want to just continue on that same thread, since it was strarted 10 months ago, and no solution was posted then.
I should also mention that during some of my restart tests on various HDs, the pattern took on a green appearance and not just pink.
Currently Being ModeratedOct 23, 2012 5:32 PM (in response to Rambling Joe)
An update on my situation.
Unable to find my original start-up disks, on Thursday 10-18-12, I called the Apple Store, looking to purchase a set of disks for my old iMac. They transferred me to Technical Support. I explained my situation, they said they had the disk I needed, and for $17 (included shipping) they would send it out.
On Monday, 10-21-12, I received the disk. However, the sent me a retail version of OS 10.4.6, which does not have the Apple Hardware Test on it. I called Tech Support, spoke to a different person, and they said that the Original Disks needed were no longer available.
So this evening, I took the iMac to an Apple Store Genius Bar, where they ran a test and it showed that the graphics card was going bad.
It looks like it's time to kiss this baby goodbye.