A couple of days ago my computer started making really random clicking noises, like a loud clock, but only one tick at a time and like I said, very random. Is this normal and can I fix it? Or is my hard drive dying? I had some problems with my cd drive, could this be it? (It opened randomly, but it doesn't anymore) I don't have a flashdrive to back everything up yet, if it's serious, will not going on the computer buy me time until I can get one and back everything up?