Hi.. I got a new iPad 4 2nd generation last month. I have around 19GB of free space. But every now and then, the iPad keeps on showing, YOUR STORAGE IS FULL and the Available shows 0. While the original available is 19GB as you see in this screenshot. https://dl.dropbox.com/u/5128006/hifi/photo.PNG Then again gets to normal 19GB after few hours. I dont understand this damn activity of the iPad , showing 0 and then getting to 19 and then again 0 , etc . What could it be ?