<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <CASH> 2,660 <SECURITIES> 10,813 <RECEIVABLES> 130 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 13,913 <PP&E> 9,781 <DEPRECIATION> 7,933 <TOTAL-ASSETS> 19,986 <CURRENT-LIABILITIES> 6,665 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 9,682 <COMMON> 138,579 <OTHER-SE> (135,563)<F1> <TOTAL-LIABILITY-AND-EQUITY> 19,986 <SALES> 0 <TOTAL-REVENUES> 4,139 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 9,348<F2> <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (293) <INCOME-PRETAX> (4,916) <INCOME-TAX> 0 <INCOME-CONTINUING> (4,916) <DISCONTINUED> (348) <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (5,264) <EPS-BASIC> (0.13) <EPS-DILUTED> (0.13) <FN> <F1>CONSISTS OF ACCUMULATED DEFICIT AND ACCUMULATED OTHER COMPREHENSIVE INCOME. <F2>CONSISTS OF RESEARCH AND DEVELOPMENT, AND GENERAL AND ADMINISTRATIVE EXPENSES. </FN>