A Hewlett-Packard worker walk in the main entrance of HP Headquarters in Palo Alto, Calif., Thursday, May 17, 2012. (AP Photo/Paul Sakuma)

Photo by: Paul Sakuma

A Hewlett-Packard worker walk in the main entrance of HP Headquarters in Palo Alto, Calif., Thursday, May 17, 2012. (AP Photo/Paul Sakuma)