<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> SEP-30-1999 <CASH> 36,475 <SECURITIES> 84,339 <RECEIVABLES> 13,623 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 101,693 <PP&E> 15,978 <DEPRECIATION> 6,626 <TOTAL-ASSETS> 147,621 <CURRENT-LIABILITIES> 34,393 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 113,180 <TOTAL-LIABILITY-AND-EQUITY> 147,621 <SALES> 57,164 <TOTAL-REVENUES> 57,164 <CGS> 26,883 <TOTAL-COSTS> 26,883 <OTHER-EXPENSES> 43,795 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (11,589) <INCOME-TAX> 525 <INCOME-CONTINUING> (12,114) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (12,114) <EPS-BASIC> (0.47) <EPS-DILUTED> (0.47)