<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> MAR-31-1998 <PERIOD-START> OCT-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 26,817 <SECURITIES> 59,387 <RECEIVABLES> 5,210 <ALLOWANCES> 1,177 <INVENTORY> 443 <CURRENT-ASSETS> 101,559 <PP&E> 57,306 <DEPRECIATION> 18,917 <TOTAL-ASSETS> 149,240 <CURRENT-LIABILITIES> 23,534 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 39 <OTHER-SE> 125,232 <TOTAL-LIABILITY-AND-EQUITY> 149,240 <SALES> 26,579 <TOTAL-REVENUES> 26,579 <CGS> 2,763 <TOTAL-COSTS> 2,763 <OTHER-EXPENSES> 31,975 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (7,127) <INCOME-TAX> (124) <INCOME-CONTINUING> (7,251) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (7,251) <EPS-PRIMARY> (0.19) <EPS-DILUTED> (0.19)