<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AS OF SEPTEMBER 30, 1997 AND THE CONSOLIDATED
STATEMENTS OF OPERATIONS FOR THE NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1997 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                      16,018,000
<SECURITIES>                                         0
<RECEIVABLES>                                3,645,000
<ALLOWANCES>                                 (546,000)
<INVENTORY>                                    106,000
<CURRENT-ASSETS>                               418,000
<PP&E>                                      17,817,000
<DEPRECIATION>                            (13,600,000)
<TOTAL-ASSETS>                              25,420,000
<CURRENT-LIABILITIES>                        8,092,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       511,000
<OTHER-SE>                                   6,616,000
<TOTAL-LIABILITY-AND-EQUITY>                25,420,000
<SALES>                                      5,360,000
<TOTAL-REVENUES>                            10,194,000
<CGS>                                                0
<TOTAL-COSTS>                                4,527,000
<OTHER-EXPENSES>                            32,314,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             350,000
<INCOME-PRETAX>                           (26,092,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                       (26,092,000)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                              (26,092,000)
<EPS-PRIMARY>                                   (0.51)
<EPS-DILUTED>                                        0