For the past couple of weeks, my iMac (a mid-2007 24" model) has been acting weirdly - getting a lot of beachballs (especially when using iTunes), and it intermitently freezes, with non-responsive UI ...

Mea culpa. If you bought a MacBook between 2006 and 2007 and your hard drive sounds like an unoiled rock tumbler trying to work its way through a belly full of rusty bolts, you could be eligible for a ...

Which model of MacBook do you have? Which OS are you running? Several years ago, I had this problem with an iMac (Mid-2007) after updating to Yosemite. Every reboot, and sometimes waking from sleep, ...