Screen Burn-In - Shows When Hot (Anyone Else????)

Question

Hello All,
Here is my situation:
I have an iMac G5 17-inch (rev. A) 1.8 GHz. I have been using it to record my 8-Track tapes, records, cassette tapes, etc. onto my hard drive to be converted to Audio CD.
I have been using both Audacity and Amadeus to record the audio into the computer. Both have been working great.
I used Amadeus quite heavily for the first few days, and noticed that the window image of the Amadeus window would "burn-in" to the LCD screen of my iMac G5's monitor.
This first occurred after only 4 or 5 hours of intensive recording and editing. All recording is being done through the iMac G5's audio input port.
The image of the window from the Audacity program remains visible as a "ghost" image on my screen. It is extremely noticeable when the computer is hot. And, not visible at all after the computer has cooled-down.
The image is noticeable even during a re-start (while the timing ring is displayed), and during start-up.
I even booted from the original factory install DVD, and it is visible there.
These are not just lines. You can actually see the buttons that are in the bar at the top of the finder window (the active screen in Amadeus), and even the defined outline of the other active windows.
These are clearly "ghost" images of the screen that was visible while I was working.
So, I have moved to using Audacity to see what would happen. And, I can see the same remnants from it being left behind.
At this point, I have several ghost images (outlines of many previous sessions) visible on the screen.
I have already had my local service provider look at the computer. He has ordered a replacement logic-board and video screen. He thinks that something is getting stuck in my video controller. While he was here, we hooked-up another video screen (as a mirrored image), and the defect does not appear on the external screen.
So, it appears to me as though the problem is the screen itself.
I have tried turning the machine off, resetting the PRAM, pressing the SMU reset button, etc. And, no change.
The lines do go away after the machine has been off, in sleep mode, or with the screen in sleep mode for a while. But, they return as soon as I have used the computer for a long time. And, new ones show up every time I record and edit additional music albums for a couple hours.
At this point, I am wondering if anyone else has recorded this much audio into their computer using Amadeus. And, if so, do you have these problems.
So far, I have recorded in about 20 albums (nearly 20 hours of music) in this fashion. This has been done in 4 to 5 hour sessions.
My thought, is that perhaps the iMac G5 cannot handle 5 hours of solid audio recording and editing at one time. And, perhaps this has caused damage to the screen. Anyone have any thoughts here?
My main concern is that I don't want this to be an on-going problem that happens every time I record and edit new music into the computer. Especially after I have the new screen installed.
I am hopeful that this is a one-time defect. And, that I won't experience this problem after the new parts are installed. But, if this is something that just happens every time the machine gets really, really, really, hot. Then, I may have to abandon the idea of recording all my music to CD.
Let me know your thoughts and personal experience here.
The computer tech from Apple insisted that screen-burn was impossible. But, he conceded that seeing is believing.
I just don't want it to happen again with the new parts.
Hopefully, someone here has put their iMac G5 through the exact same use (with the same programs), and can confirm that my experience is unique.
So far, the Apple service tech has been great. No complaints there. I just don't want to replace my video display every time I record records and tapes into the computer.
By the way, I did look, and there are no swollen capacitors.
Thank you all

Answer 1

The problem, is that in my case the image would burn-in permanently within an hour or two of using the system.
So, the energy settings wouldn't really have helped my particular problem.
It's hard to be productive when you are watching the screen-saver or have the screen off.
I would find that in addition to the existing images that were burned-in, that new burn-ins would happen while I was actively using the computer.
Any part of the screen that didn't change for a while would burn-in. So, the button bar, for example would become a permanent image.
Yes, I could move things on the screen constantly. But, it would make being productive pretty hard if I spent all my time trying to prevent screen-burn.
In the case that it was an inactive system with images being burned-in, then your suggestions would be very useful.
Unfortunately, the problem I had was that the images would burn-in even while using the computer.
I did get a new screen from Apple though. And the new one looks and works great.
So, it must have just been a defect in my original screen that caused the problem.
It's fine now
If you have any problems with images getting stuck or burned-in, I would contact Apple and just have them replace it. I'd prefer to get it fixed during the warranty than to try to limp it by.
In my situation, the replacement LCD even lowered my temperatures back down to normal. So, there were most likely a lot of problems with that LCD panel.
Anyway, it's nice to have a clean and clear screen again. The old one was getting quite annoying.