Have an Intel Core Duo 17" MBP and replaced the battery exactly 2 years ago when the original battery was starting to "swell" like a balloon. In the last couple weeks I noticed that the MPB will not charge. Sometimes it will (and will charge all the way to 100%) but for the most part it won't and just stays at 0%. If I remove the power cord (when at 0%) the MPB just shuts down. Is there anyway to tell without going to the genius bar if this is the battery, the charging cord, or software? I can't imagine it is the battery as it is only 2 years old and I do not use the MBP every day so I can't imagine the charging cycle life is done. I figured if it was done then it would just hold less charge slowly over time. Thanks in advance for any replies!