<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> MAR-31-2001 <PERIOD-START> APR-01-2000 <PERIOD-END> JUN-30-2000 <CASH> 129,184 <SECURITIES> 82,831 <RECEIVABLES> 45,815 <ALLOWANCES> 9,043 <INVENTORY> 1,515 <CURRENT-ASSETS> 272,470 <PP&E> 120,915 <DEPRECIATION> 48,409 <TOTAL-ASSETS> 383,167 <CURRENT-LIABILITIES> 70,367 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 60 <OTHER-SE> 295,011 <TOTAL-LIABILITY-AND-EQUITY> 383,167 <SALES> 94,764 <TOTAL-REVENUES> 94,764 <CGS> 10,111 <TOTAL-COSTS> 10,111 <OTHER-EXPENSES> 513 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 15,593 <INCOME-TAX> 3,586 <INCOME-CONTINUING> 12,007 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 12,007 <EPS-BASIC> 0.24 <EPS-DILUTED> 0.21