Donny: I'd like to speak to someone about a mortgage buy sildenafil citrate online Ballmer, who was Microsoft's 30th employee, has been CEO since 2000. He's overseen a period of change as the world's largest software maker has transitioned away from its focus on PC operating systems to multiple platforms and hardware such as tablets. But the company's rapid growth days are long past, with the shares trading in the $20 to $40 range since his tenure began while rivals including Apple have increased their shares 10-fold.