Compact Video and Four Star International announced that they have entered into an agreement to merge a wholly owned subsidiary of Compact Video into Four Star . . . Coldwell Banker Real Estate Group announced that it has acquired the residential real estate brokerage operations of Eisenhower Inc. in New Jersey . . . Wheeling-Pittsburgh Steel, seeking to save money during its bankruptcy reorganization, said it will move its headquarters from Pittsburgh to Wheeling, W.Va. . . . . . . Shareholders of Display Data Corp. of Hunt Valley, Md., a vendor of computerized management systems, approved the merger into a wholly owned subsidiary of San Jose-based Convergent Technologies . . . Northwest Airlines said it will suspend service to and from Kuala Lumpur, Malaysia, effective Oct. 1.