Studio 1737 laptop--5 years old.  My power adaptor led white light goes on momentarily when plugging the adaptor into the computer, and then goes off.  Even though it is off, the power icon shows a plug and it will charge the battery.  Any idea why the light is out? Does it indicate something is wrong with the adaptor connection? The blue light on the adaptor is on and steady.  A few weeks ago, I got a message that the computer did not recognize the adaptor when powering on, but I unplugged and plugged it back in and have not gotten that message since.  I did not even get the message today even though the white light was off.  Is it possible that the problem is with the light itself or does this mean I have a repair coming? Any input appreciated. I'm afraid to unplug the adaptor from the computer because it may not make a connection again.  Cannot find this issue online--all the problems with the LED light involved not charging.