<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <EXCHANGE-RATE> 1 <CASH> 75,021 <SECURITIES> 0 <RECEIVABLES> 19,528 <ALLOWANCES> 1,426 <INVENTORY> 0 <CURRENT-ASSETS> 94,349 <PP&E> 6,151 <DEPRECIATION> (2,809) <TOTAL-ASSETS> 123,795 <CURRENT-LIABILITIES> 9,223 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 284 <OTHER-SE> 105,099 <TOTAL-LIABILITY-AND-EQUITY> 123,795 <SALES> 7,958 <TOTAL-REVENUES> 7,958 <CGS> 2,160 <TOTAL-COSTS> 2,160 <OTHER-EXPENSES> 5,884 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 1,038 <INCOME-TAX> 394 <INCOME-CONTINUING> 644 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 644 <EPS-PRIMARY> 0.02 <EPS-DILUTED> 0.02