I have an issue that I hope someone knows the answer to. My computer does not recognize that it is plugged in. The Battery Icon does not show that it is plugged in, but does show that my my battery is good for 4440 hours, and I have not lost any battery charge in the several hours I have been using it. When I tried taking out the battery it shut off as if it were not plugged in.. Also the screen brightness keeps flickering between power saving mode and regular.  This has happened using several different outlets, and the cord always has it's green indicator light on. It will occasionally briefly recognize that it is plugged in but then go back to thinking it is running on batteries.  I'm trying to figure out if it is a battery issue, a power cord issue, or a board issue.  (I'm really hoping one of the first two).  If this sounds like anything somebody knows about please let me know.