Battery won't charge

[beaudunn]

I have had my MacBook for a little more than a year. The battery will not charge. When I plug it in, the green light shows up as if the battery were already charged. In the upper right hand corner, it shows the batter with a red X and then eventually changes to the batter with the plug (also suggesting it is charged). Does anyone know how I can fix this? Is my battery dead? Thanks in advance.

 

[shady825]

Take a look here