I bought a Dell Inspiron N 5050 last week, and recently discovered a problem with my laptop. It doesn't Power On until and unless I Plug-in the charger. After I plug-in the charger, it boots up fine, and continues to work well after disconnecting the charger. I don't know what the problem is exactly? I was planning to contact Customer Care, but I wanted to know if I could fix it myself. Please help!