Nothing happens when i plug my iphone into my computer?

When i plug my iphone into my computer using the USB lead nothing happens, it doesn't charge or anything. However when i use the same lead with my charger plug thing the iphone charges fine, and when i use the lead with my ipod and my computer it works fine it seems to just be my phone and computer together? Anyone had a similar problem that can help?!

Try updating your itunes, the iphone usually needs the most up to date version of itunes for it to work woth your computer.

Try useing a diffrent USB ports and makes sure iTunes is up to date if still not working fully reboot the iPhone by holding the sleep/wake button and home until its compleaty off then repeat the same thing by turning it on

i tried both of these methods and nothing worked

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