gdgt

Let me guess... you have vertical lines of various colors appearing on your screen? This is an epidemic that affects late model G5 and early model Intel iMacs. In my experience, it affects all of them eventually. It is only a matter of time. There is no viable fix for it. If you get Apple to replace the board, start your timer because you will be right back where you started. The only practical solution is to hide it under a desk and buy a new LCD to connect to it using the mini-DVI to DVI adapter. Sorry if you assumed you were getting better hardware by paying more for the Apple, but that has not been true for many years. It's all the same cheaply made Chinese junk, just with a nicer shell on it. Top that off with the fact that Apple's engineers come up with the most convoluted designs to make their boards fit in these pretty shells, and it is a recipe for disaster.

I am not speaking this as "just another Apple hater". Look at my Have and Had lists if you doubt me. This is spoken as a Director of IT who deals with hundreds of machines per year, by way of students, faculty, and all the random friends and acquaintances who ask me to solve their problems. A large percentage of these hundreds are Apple here in this area. I have stopped recommending Apples to people who are not Apple users already because of the hardware cost to reliability ratio, which I find to be much lower than Toshiba and even Acer. I am almost hoping that the Apple facility in North Carolina isn't going to be a data center at all, but a giant manufacturing plant instead... maybe then they could solve these problems and justify the higher cost.