"Dilbert" is the darling of the magazine racks, and now comes the real crowning achievement for the comic strip nerd and his cohorts-a line of neckties and silk boxer shorts. Ralph Marlin is offering the items, with ad support fr om Nelson & Schmidt, Milwaukee. Copywriters: Bill Stadick, Maggie Kenny. Art director: Sean Mullen
. Cartoonist Scott Adams' Dilbert character owned the cover of TV Guide last week, following recent cover appearances on Fortune and Newsweek.