That's right - yesterday I dropped close to 10,000 Australian dollars on a dual 2ghz with 1GB of RAM, an Airport Extreme card and a 23" Apple Display... get it home, switch it on, NOTHING. Well, not nothing. The startup chime sounded, along with a whirring fan-starting noise (like a car revving its engine - can someone with a dual comment on whether theirs sounds like this as well???). It also made a faint clicking noise (other people have commented on this, but not in conjunction with it not working), and also I could hear a noise a bit like a dot-matrix printer.. hard to describe really. But the screen never showed anything. So I shut it down, tried again. Same nothing (with noises). Thought it might be the screen, so I plugged it into my old screen using DVI-VGA adaptor - but still nothing. Then I got the bright idea of removing airport card and RAM - and then IT WORKED! I thought I'd just got bad RAM, so I shut it down, replaced the Airport card (but not the RAM), and spent the rest of the day happily transferring stuff from my old computer, setting up icons and desktops, enjoying the HUGE difference between it and my old G3. It really is a beautiful machine, even with only 512 MB RAM. It just flies. I was up until 2am playing with it and making friends. Then this morning I got up, ready to have more fun with it, and it DID THE SAME THING. I'm now very sad, because I know there aren't many in Australia and it could be weeks before I get another one... Anybody got any tips about what I could try before I take it back? It's going to be a few days before I can, so i'd love to be able to get it going a bit at least.