My laptop has no power.  There was a message on my laptop the last time that I it was working saying something like "The AC Power connection...blah, blah.....then it said Press F1 to continue powering up.  I did and it worked fine.  Today, I have no power whatsoever....

Dell customer support says I should replace the mother board....i need some advice from someone who knows about this problem.....could it be just a bad AC adapter????