I bought this Coby MID7038 a month ago. I didn't have any problems with it, until now. The battery shows it "IS CHARGING" but apparently it doesn't. For the first 30mins, it charged up to 35%. Then I turned it off. After 2hrs, I turned it on to check..it DID CHARGED but heck it was only up to 36%. 1. What's wrong with this? 2. I sometimes use it even it's charging. Is this the reason? 3. Help me please. I'm sorry if this question was already asked and was already answered.