<ARTICLE> 5 <MULTIPLIER> 1000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> SEP-30-1998 <CASH> 22,594 <SECURITIES> 97,784 <RECEIVABLES> 5,401 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 89,217 <PP&E> 58,571 <DEPRECIATION> 25,925 <TOTAL-ASSETS> 162,439 <CURRENT-LIABILITIES> 9,628 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 31 <OTHER-SE> 136,822 <TOTAL-LIABILITY-AND-EQUITY> 162,439 <SALES> 0 <TOTAL-REVENUES> 36,011 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 38,765 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 330 <INCOME-PRETAX> (3,084) <INCOME-TAX> 0 <INCOME-CONTINUING> (3,084) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (3,084) <EPS-PRIMARY> (0.10) <EPS-DILUTED> (0.10)