Hi all! I will start at the...start obviously. So I have an IO-DATA u320 320GB hardrive and it has my time machine backup as well as entire user folder for my computer. Today I needed to take it to school Come home and plug it into my moms macbook (not the computer where it uses it for user folder) and it started making these weird disco alarm sounds. I turned it off, and tryed again and it boots up like normal then gets stuck in a permanent clicker sound like the one in a car. It also doesn't show up in finder. I have very very very important files on this and I don't know what to do!