Kaiz

I know it is kind of stupid asking this question but... here goes! I just got a Zen Micro for Christmas and was so excited about it, but I have one problem Im using my computer to charge the Zen Micro. I've been charging for about 1 day now and the battery does not seem to go up it stays in the same.... Could you guys help me on how to set it up so it is charge the right way? Thanks alot.