Recently bought an 05 nissan altima. I put a new battery in it because it needed one badly. After that it started up fine and drove fine. Next time I tried to start it, it wouldnt start. It turns over, but nothing else. Took it back to the dealership, and they tried a few things and finally got it working again (they said it was some computer chip or something). After I got my car back, it started up fine and drove fine. The next time i tried starting it after that, it wouldn't start. Same problem... Any suggestions?