<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S FINANCIAL STATEMENTS INCLUDED IN ITS FORM 10-Q FOR THE FISCAL QUARTER
ENDED SEPTEMBER 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                           2,743
<SECURITIES>                                    10,631
<RECEIVABLES>                                       61
<ALLOWANCES>                                        46
<INVENTORY>                                          0
<CURRENT-ASSETS>                                13,738
<PP&E>                                          20,000
<DEPRECIATION>                                  12,312
<TOTAL-ASSETS>                                  24,071
<CURRENT-LIABILITIES>                            1,339
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           210
<OTHER-SE>                                      21,768
<TOTAL-LIABILITY-AND-EQUITY>                    24,071
<SALES>                                             33
<TOTAL-REVENUES>                                    79
<CGS>                                                1
<TOTAL-COSTS>                                        1
<OTHER-EXPENSES>                                 6,065
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  16
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (5,781)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (5,781)
<EPS-PRIMARY>                                   (0.28)
<EPS-DILUTED>                                   (0.28)