A friend with an iPhone4S is having trouble viewing youtube videos emailed to her from youtube. Youtube gives you the option to send the URL of a video via email to a friend. Are there some settings on her iPhone she needs to set? This is not the same as downloading the youtube app onto her phone and viewing youtube videos that way...this is to view the videos emailed to her iphone email account. The emailed URLs don't seem to allow the playing of the videos to which they correspond. Thanks!