<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A) THE
BALANCE SHEET AT DECEMBER 31,1995 AND STATEMENTS OF OPERATIONS FOR THE YEAR
ENDED DECEMBER 31,1995 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH (B)
ANNUAL REPORT FILED ON FORM 10-K/A.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>        <C>                     <C>
<PERIOD-TYPE>                   3-MOS                                 YEAR
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1995
<PERIOD-START>                             JUN-01-1996              JAN-1-1995
<PERIOD-END>                               SEP-30-1996             DEC-31-1995
<CASH>                                             138                     468
<SECURITIES>                                    17,387                  11,024
<RECEIVABLES>                                      993                     815
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                                18,663                  12,409
<PP&E>                                           5,880                   5,429
<DEPRECIATION>                                   4,232                   3,419
<TOTAL-ASSETS>                                  20,347                  14,455
<CURRENT-LIABILITIES>                            1,830                   1,923
<BONDS>                                            275                     818
<PREFERRED-MANDATORY>                           58,021                  48,007
<PREFERRED>                                          0                       0
<COMMON>                                             0                       0
<OTHER-SE>                                    (39,779)                (36,293)
<TOTAL-LIABILITY-AND-EQUITY>                    20,347                  14,455
<SALES>                                              0                       0
<TOTAL-REVENUES>                                 3,031                   3,534
<CGS>                                                0                       0
<TOTAL-COSTS>                                    3,105                  10,298
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                  38                     322
<INCOME-PRETAX>                                  (112)                 (7,086)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                              (112)                 (7,086)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     (112)                 (7,086)
<EPS-PRIMARY>                                   (0.01)                  (0.55)
<EPS-DILUTED>                                   (0.01)                  (0.55)
        

</TABLE>