I was hoping I could get a second opinion about something. The battery light on the front of my laptop constantly blinks red, and, even though the computer says the battery is charging, there are times when I will unplug the power supply and the whole thing dies. I have to pull out and put back the battery a couple times, plug the thing in, and then it starts again. I am thinking it needs either a new battery or adapter, but I don't want to buy one unless that is for sure what it needs. Thanks in advance for your advice.