Pay Microsoft to "Page Up"

Or down, even:

Microsoft patents 'Page Up' and 'Page Down'

The software giant applied for the patent in 2005, and was granted it on 19 August. US patent number 7,415,666 describes "a method and system in a document viewer for scrolling a substantially exact increment in a document, such as one page, regardless of whether the zoom is such that some, all or one page is currently being viewed".

O RLY? I'll be interested to see how they go about collecting the license fees.