
<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED>

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                      17,521,745
<SECURITIES>                                         0
<RECEIVABLES>                                  554,210
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                            18,241,050
<PP&E>                                      13,278,627
<DEPRECIATION>                               4,702,296
<TOTAL-ASSETS>                              26,827,189
<CURRENT-LIABILITIES>                        2,253,565
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        68,412
<OTHER-SE>                                  24,505,212
<TOTAL-LIABILITY-AND-EQUITY>                26,827,189
<SALES>                                        851,827
<TOTAL-REVENUES>                             1,099,787
<CGS>                                          107,676
<TOTAL-COSTS>                                3,835,151
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                            (2,735,364)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                        (2,735,364)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (2,735,364)
<EPS-PRIMARY>                                   (1.21)
<EPS-DILUTED>                                   (1.21)


</TABLE>
