I'm an experienced buyer of refurb PC's for the office, and this has been my worst experience by far out of about a dozen mostly-great Optiplex purchases.I ordered two units from Refurbished Pros.  On the first, DisplayPort did not work out of the box, and the VGA output became scrambled 5 minutes after power-up.On the second unit, DisplayPort is also disabled out of the box, and additionally both units are missing cover plates on the back expansion slots and smell like they've been in a fire.Very disappointing...