@ Tallest Skil: I am actually able to be on the machine, like this moment for instance, once in a while where it works, but it intermittently turns the screen black for what ever reason it feels is necessary. I know you say it is "impossible" to change it, but I can buy the parts for it. I've read up on what I might need to do. I know the risks... my main objection is the 512 graphics card from an early 2008 iMac is more expensive than the same card from a early 2009 iMac. When I look at each card on line the seem identical. I just wanted to know if it would work being that they are about 1 year apart.
@ s.metcalf: Yeah it is out of warranty...
@ emacs72: Yes I should go to an Apple store, but the closest is 1 hour away. Second, I don't want to spend a grand or what ever it is to fix it. I want to do it cheap because other wise I might as well put that money into new hardware.
If anyone has any suggestions... let