Hi everyone, I am experiencing very strange failures which seem connected to the hardware. I have a MacBook black mid-2008, worked perfectly until 1 month ago with little to no maintenance done. 1 month ago, the screen froze with the beachball spinning and I was forced to force shutdown. When trying to start it up, it would reach the page with the apple logo and then automatically shut down after 1 minute. So I initialized the HD and re-installed the OS. Everything was back to normal. After exactly 2 weeks (14 days), the same thing happened again. I initialized the HD and re-installed the OS again, and everything was working once again. Yesterday, after exactly 14 days, the same thing happened again, and I followed the same steps. Now the MacBook works again, but judging by the pattern, my guess is that in 14 days it will fail again. I don't understand what could cause failures such as these ones, exactly 14 days apart. My hope is that it's not the logic board. Any suggestions?