Greetings, I have a 2007 white MacBook and it is demonstrating behavior that is making me very nervous. Please let me know if you think I should just bite the bullet and take it into the Apple store, or if I'm just being paranoid. The situation is this: Over the last weeks, I've noticed that the computer on occasion does not recognize it is plugged into power. I've had to seat, and re-seat, the MagSafe adapter, to get the computer to recognize the cord. Originally, I thought this was the fault of the cord, as there were times when my power adapter would be lightless, and I'd go plug and unplug the cord from the wall, and voila! I'd get light on the MagSafe again. Assuming that was the case, I called Apple and got a replacement cord. But, here's the rub. I have had a couple issues *after* the cord replacement. Like just now, I picked up my laptop to start it up from being totally turned off, and there wasn't any light at all on the adapter; I had to seat and re-seat again the MagSafe adapter, before I got the green light on it. These situations are tiny but now I am worrying: if the problem is with the MacBook, does that mean some kind of disaster is imminent? Can I relax, or should I assume it is time to run to the Apple Store? (Which I hate doing, since it means losing the MacBook for a couple of days when they send it out to their laptop work centers.) Thank you for any help you can provide; I greatly appreciate it.