I recently purchased a external hard drive (Simpletech 500 GB from Best Buy) for use with my Macbook Pro. It worked perfectly up until today (does not show up on desktop). When I switch it on, the drive starts up and makes a slight clicking noise that continues for about twenty seconds and the the drive suddenly stops working (light indicator light stays on though) Has anyone else had this problem? Is there anyway to salvage my data that was on it? Should I ask the guys at Best Buy?