<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> MAR-31-1999 <EXCHANGE-RATE> 1 <CASH> 25,975 <SECURITIES> 0 <RECEIVABLES> 14,464 <ALLOWANCES> 3,042 <INVENTORY> 3,947 <CURRENT-ASSETS> 45,683 <PP&E> 17,500 <DEPRECIATION> 12,265 <TOTAL-ASSETS> 57,211 <CURRENT-LIABILITIES> 12,108 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 117 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 57,211 <SALES> 13,462 <TOTAL-REVENUES> 13,462 <CGS> 6,302 <TOTAL-COSTS> 12,755 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 1,040 <INCOME-TAX> 417 <INCOME-CONTINUING> 623 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 623 <EPS-PRIMARY> 0.06 <EPS-DILUTED> 0.06