Loading web pages has caused me more gray hair than my 70 'Cuda. Do you ever anticipate a version of iPad that will not have this? (or at least less?) 😀😀😀😀
Your wireless connection must be wicked slow or you're using up a lot of the systems ram. Try opening up multitasking and closing apps that you're not using. I'm on AT&T 3G and have never had check boards.