A pair of thieves were caught by the tech-savvy owner of one of the laptops they pilfered, using the “Back to My Mac” remote desktop software to find her Mac and take control of it – and to take a picture of one of the thieves, as well.Here in White Plains, a break in the case came on Tuesday when a friend of Ms. Duplaga’s sent her a congratulatory text message on the return of her stolen computer. “She said, ‘I don’t know what you’re talking about,’ and her friend said, ‘Well, you popped up as being online,’