Question How to make F4 -or another function key or keystroke combination- open/close Calculator? A backup should be taken of everything as soon as possible. How old is this macbook? If it has an hdd and it is starting to rattle loudly as it never has done before then it is nearing the end of it's life and the hdd will need to be replaced. Thank you for your time and I'll be waiting patiently for advice! Perhaps it is simply an internal problem? My mac DOES NOT COME WITH a CD ROM drive. I also got stuck with some search engine called anysearch and Ive signed up to a ton of bogus casino sites. Is this a virus or something? I don't have a virus scanner and I downloaded some junk called OPENFILE which was ads and mumble jumble, nothing like the program said it was. Exactly! There is also very low echo at the same time. It sounds the exact same as putting coins into a coin slot at a vending machine, or arcade. The more I think about it, the more I feel like Ive heard the sound before in real life. It lasts about 5 sec and i can only describe the sound as being a rattle(?) or clicking(?) or dice being thrown(?). It might be associated to the internet and not the laptop interior itself though I could be wrong. About two weeks ago my mac laptop started to mack a low brief rattle (?) noise at random times.

Mac dvd drive making clicking noise