Eddie Murphy and the writers of the special effects laden (and leaden) "Haunted Mansion" could have learned a lesson or two by watching this workman-like picture, the sixth in the Blondie series. In this installment, Mr. Dithers asks the Bumsteads to move into a remote mansion until he can sell it. The house has a menacing butler, on-again, off-again utilities, and hidden passages and secret doors. "Blondie has Servant Trouble" provides an enjoyable mix of suspense and comedy. One sour note mars the movie: Ray Turner plays a chronically frightened African American a standard stereotype of the period -- who faints at the slightest scare.