Hello everyone, I was having issues with extremely annoying clicking sounds coming from the hard drive in my Mac Book Pro, issues I noticed after not using it for very long at all. The sounds are so loud and intrusive that I have trouble actually working on my computer without headphones, and the problem occurs very frequently, mostly when I am surfing the web or watching a movie. It makes the sound when it is not being moved, and I had even heard it several times while the computer was actually closed, and asleep (after I went to bed). I was well aware that the problem was probably the disk heads parking after doing a lot of research, therefore I tried to install HDAPM. However, I didn't get it to work, even though I tried several times. I'm not entirely sure what went wrong. I eventually got so tired of it that I decided I would try replacing the hard drive anyway - why not at least see if that would fix the problem? So I took it to the Apple store and had them replace the drive. They did, and it's still doing this. So I decided I'd try to live with it. Guess what? I can't. I don't know how ANYONE can, honestly. I'm not sure what the drive I had before was, but the one I have now is TOSHIBA MK5065GSXF. Perhaps someone could walk me through this? I know that trying to do this again without help is just going to end badly. I'd really appreciate it if someone would be willing to help. Thanks!