I was desperate. Dust was clogging up my machine to an extreme degree, so I took all of the fans off (except the one at the top which was pretty impossible to get to) and vacuumed everything. It was completely unplugged.

My hubby gave me hell because one of the fans I removed came off the motherboard itself. It's seemingly supported for 4 "prongs" only.
I thought I had it aligned properly, turned it on, it started to load then simply shut itself down. I tried it again with the same results.
I concluded I hadn't put the fan on right and after a couple hours, I gave up lest I mash the beastly devil against the wall.

I then took it to hubby's because he repairs everything.
He won't even LOOK at the problem. He tells me I ROYALLY screwed up, but he'd have his friend Scott look at it (Scott knows more than my hubby about such things). But Scott's disappeared off the surface of the world... again lol.
No telling when I'll have my machine back, if ever. I fear the worse.

In the meantime, I'm using my iBook G4, the screen of which was shattered several years ago when one of my daughters threw a comb at her sibling and missed
I hooked it up to a monitor and all was well for a year or so. Then it had a serious melt down. I had misplaced my disks for it, so hubby used some other program he had.
I lost my iPhotos, but the machine itself works perfectly fine again.

Does anyone know of a good Mac application that's free for importing and editing pics?

Thanks.