Hi there. I have this: http://www.sunix.com.tw/it/en/Product_Detail.php?cate=2&class_a_id=34&sid=369 Plugged into one of the free PCI slots on my MDD G4. But its not being recognised. I think the SATA hard drive I have in there is spinning, but that's because the power is running. Is it simply not compatible? It worked in my old PC, but the website doesn't mention Mac compatibility.... Does this mean when I buy a new one, I'm going to have to look out to make sure it works with a Mac? Cheers, Ryan.