I need more power to my usb port in my computer. I have magic jack and I switched computers- transferred my magic jack to a different computer. The computer I currently have is a newer computer and I cannot get caller ID because the usb doesn't have enough power. Oddly, the old, really old, computer's usb worked fine and I had caller ID. My question is where is the source for the usb power? If I get a new and better psu would it make a difference to my usb port? Or is it the mb, or usb port itself?