Power Surge on the USB Port.

Well, for the first time ever in my 2 years of having this IPOD plug for my 5th Gen...I wanted to upload some pics on my ipod, but i plugged the port into the computer and the other part into my ipod, and it said my port had a power surge of some sort. So i can't charge my ipod via computer, but it works in my ipod player (which is my deck that i have in my bedroom to play music through speakers) and it works...And other USB items (i.e webcam) work in any port...So its seems its just the plug.
It all of a sudden worked when i just plugged it in as i wrote this to be sure what it said, but does anyone know why this happened?

When you say "port" do you mean the iPod cable that has a dock connector on one end and a USB connector on the other end? When you have your iPod connected to your iPod player does the player have a dock connector on it such that the iPod plugs directly into the player? If the answer to both of these questions is yes then I would suspect that the iPod cable is bad or on its way out. Another test of the cable would be to connect it to an iPod power adapter that plugs into the wall and see if the iPod charges.
The other possibility is that there are other USB devices connected to your computer and when the iPod is connected the USB ports on the computer are unable to supply sufficient power to all of those devices.

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