Seems only two patents remains now.. 
Have you read the linked patent claims?
these blockheads claim patents for MOUSE-CLICKING
if these patents get reviewed by the pto they will be deleted immediatly, i'm sure
description in short: " A system that displays something and waits for user interaction (clicking an icon) to display the results." Calling it multimedia doesn't camouflage that this is what Xerox has created the gui for.
Ridiculous by all means.