I just got an iMac G3, and was told it just needed the OS re-installing. However, when I first booted it from the CD, I found that it couldn't recognise the hard drive. Thinking it was just a faulty hard drive, I purchased a new one and installed that, but it has the same issue. There also seems to be a loose wire in the case, thin and black. Here's a cropped photo from when I had just taken out the RAM: (sorry it's a bit out of focus) I think it may be something to do with the fact this wire isn't connected to anything. Any help would be much appreciated.