The hard drive in question is this. Luckily it's got all of my archives on it, so isn't needed these days. However as I'm preparing to swap systems soon, it'll be used extensively. Usually I would just plug it into the mains, insert the USB lead into my Mac and it'll work. However now it won't. It requires a lot of wiggling and fiddling at the hard disk end of the lead. If it's not perfectly angled out of the hard drive enclosure, it won't turn on. Therefore it's a case of wiggling it until I feel the hard disk spin. I'm guessing this is a problem with the enclosure and not neccasrily the hard disk. What do you think? I'm thinking about buying another hard drive enclosure and hoping that sorts it.