Presentation Technologies Inc. is using a picture of Massachusetts Gov. Michael Dukakis in a controversial ad for its slide-making equipment for personal computers. Fortune magazine rejected the ad as "demeaning to Dukakis." Newsweek and Inc. ran it. The company said Dukakis was unpersuasive during the presidential campaign. A spokesman for Dukakis said the unauthorized use of the Massachusetts governor's photograph to sell a product "shows a lack of common sense and decency."