So, my Cmp741e tablet gets all weird when I plug the usb charger in. The screen doesn't respond to my touch (rather it starts flipping all over the place) and when I type, it doesn't type what I'm pressng. It's like it's frickin demented. When it's not plugged in, it's fine. What the heck could be the cause of this? Does anyone know the solution? *EDIT I only get this problem when it is plugged into the usb wall charger. I don't get the problem when it's plugged into my laptop usb port. I suspect that the problem is too much electricity but my wall charger has the same amperage as a typical usb 2.0 (500ma). Does anyone know of a usb wall charger that you know works?