It really seems like my MBA is starting to die. It's been freezing almost every day or so now and only when I have 10 - 15 tabs open in Safari. I have 8 GB of RAM so I feel like it's not because I have too much going on or anything. Also, I've had a "service battery" message for a few months now. To add to that, there is a white dot in the middle of my screen. It's been there for over a year now.