Is it just me, or has anyone noticed that if you use any other USB cable aside from the one provided, that your Captivate only charges up to 50%? I tried using the sync cable from my old Nokia (which is that same USB A type to mini B like the Captivate), plugged into the Samsung wall charger, and even after a full night of being on the charger, the battery indicator was only at 50%! What's the deal with that!? The other thing to note is that, when I use the Samsung cable and the Samsung charger, it just charges, like what you'd expect. But if I say, use my Samsung charger, and the ______ USB cable instead, it prompts me with the same question you get as if plugging into a PC (Mass Storage, Kies, Media player, etc.) What's going on here?