Bizarre Behavior

[codydod1]

I have this new computer. (New-ish) It works amazingly well. Nothing goes wrong, it is quick, it is effective. Except for one problem. On occasion, it dies. Completely. It turns off, and nothing you do turns it back on again. No matter how many times you push the button. The first time, it died, and I tried unplugging/replugging the computer. It started up. 3 days later, it died again. I tried unplugging/replugging again, but it didn't work. I asked the guy who provided the computer, and he suggested that some battery was dead/loose, and that we should just adjust it. So, I unplugged everything, Put the computer on the nearby kitchen table, and fiddled with the battery cable (I think). When we put it back, it worked. Soon enough, it died again. I put it in my car, and was going to take it in person to the computer guy. I took it out, plugged it in, and it worked, so I took it home. This last time (a month later) it died, I figured it works if I simply move it, so I unplugged everything, put it on the kitchen table, put it back, and plugged everything back in. It works, now, but why does it do this?