Apple Computer Inc now plans to start on construction of its 129-acre customer service centre on the outskirts of Austin, Texas late this summer: tentative plans call for completion in late 1995; the facility will employ 1,700 people by 2001; Apple moved the operation into temporary quarters in northeast Austin in December 1992 but ran into silly problems at the end of last year when the local authority at first blocked tax incentives on grounds that Apple provides benefits to domestic partners of its gay and lesbian employees; a subsequent vote reversed the bar.