The problem a lot of us users were having before was that the first batch of edges shipped with the wrong sized power adaptor. (The tip only 7.5 mm long instead of 9 mm.) This was discovered and remedied pretty early on, but some of us needed to be shipped new power adaptors (not the full brick, just the part that plugs into it).
It would be strange if this is what happened to you, given that your machine was purchased so recently. But it's possible you received one of those older power cords. They did work for most people, for a certain amount of time, and then started acting up in a variety of ways displaying finicky charging behaviour.
So just in case, measure the metal tip of your charger and see if you've got a 7.5 mm or 9mm length. If you did get the short one, entourage will gladly send you the correct one.
The other thing I noticed is that charging the machine when it's under 15% battery life is different than when it's above 15% battery life. (See here:
http://www.entourageedge.com/forums/...=2510#post2510) so is there any chance that this behaviour you're noticing is only when the battery is quite low?
Otherwise I'd say it's time to contact Entourage because that isn't normal behaviour.