<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> SEP-30-1998 <CASH> 53,529 <SECURITIES> 45,130 <RECEIVABLES> 6,108 <ALLOWANCES> 1,155 <INVENTORY> 203 <CURRENT-ASSETS> 107,632 <PP&E> 11,530 <DEPRECIATION> 5,611 <TOTAL-ASSETS> 116,089 <CURRENT-LIABILITIES> 36,456 <BONDS> 996 <PREFERRED-MANDATORY> 0 <PREFERRED> 4,878 <COMMON> 67 <OTHER-SE> 65,478 <TOTAL-LIABILITY-AND-EQUITY> 116,089 <SALES> 0 <TOTAL-REVENUES> 45,767 <CGS> 0 <TOTAL-COSTS> 8,854 <OTHER-EXPENSES> 58,150 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (3,511) <INCOME-PRETAX> (17,726) <INCOME-TAX> 0 <INCOME-CONTINUING> (17,726) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (17,726) <EPS-BASIC> (0.28) <EPS-DILUTED> (0.28)