I have only had my VX for a few weeks, and I replaced the battery due to a near dead one when I got it. However, now the sucker is turning over when I turn the key, but it keeps going then it finally fires the engine on. After driving around a while, the thing starts beautifully and quick. But when it sits overnight or for a few hours, this happens again. Has anybody had this happen? I have heard of starters getting into a flat spot, I didn't know if that was what it was.