iPad "not charging" on windows 7 USB port

Issue:

I pluged my iPad into a laptop usb port on a windows 7 PC and it shows "not charging" where it should show me the charing battery".

Solution:

A quick search lead me to the this forum post.
 http://apple.stackexchange.com/questions/11690/how-to-charge-ipad-v1-on-a-windows-device

• "An insufficiently-powered USB port will charge an iPad, just slower than a high-powered one. When you plug the USB cable into your laptop the iPad will say "Not Charging." However, when the screen is off it is in fact charging. As soon as you turn the screen on again the battery area will say "Not Charging," too, but again, with the screen off it will charge."