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<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 6-MOS 12-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999
<PERIOD-START> JAN-01-2000 JAN-01-1999
<PERIOD-END> JUN-30-2000 DEC-31-1999
<CASH> 1,728 1,950
<SECURITIES> 7,709 5,606
<RECEIVABLES> 0 0
<ALLOWANCES> 0 0
<INVENTORY> 0 0
<CURRENT-ASSETS> 10,718 7,893
<PP&E> 5,664 5,636
<DEPRECIATION> (4,719) (4,439)
<TOTAL-ASSETS> 11,743 9,170
<CURRENT-LIABILITIES> 3,371 3,957
<BONDS> 0 0
0 0
22 10
<COMMON> 23 22
<OTHER-SE> 70,568 56,742
<TOTAL-LIABILITY-AND-EQUITY> 11,743 5,130
<SALES> 0 0
<TOTAL-REVENUES> 1,330 4,237
<CGS> 0 0
<TOTAL-COSTS> 9,708 11,699
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> (251) (398)
<INCOME-PRETAX> (12,794) (7,064)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (12,794) (7,064)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (12,794) (7,064)
<EPS-BASIC> (5.75) (3.21)
<EPS-DILUTED> (5.75) (3.21)
</TABLE>
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