<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMAY FINANCIAL INFORMATION EXTRACTED FROM THE 
BALANCE SHEET AND THE STATEMENT OF OPERATIONS AND IS QUALIFIED IN ITS 
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                                  
<PERIOD-TYPE>                         6-MOS
<FISCAL-YEAR-END>                            JUN-30-1996
<PERIOD-END>                                 DEC-31-1995
<CASH>                                            10,629
<SECURITIES>                                      98,134
<RECEIVABLES>                                        214
<ALLOWANCES>                                           0
<INVENTORY>                                            0
<CURRENT-ASSETS>                                 109,896
<PP&E>                                            17,953
<DEPRECIATION>                                    12,512
<TOTAL-ASSETS>                                   115,337
<CURRENT-LIABILITIES>                             27,652
<BONDS>                                                0
<COMMON>                                         156,218
<PREFERRED-MANDATORY>                                  0
<PREFERRED>                                            0
<OTHER-SE>                                       (70,177)
<TOTAL-LIABILITY-AND-EQUITY>                     115,337
<SALES>                                                0
<TOTAL-REVENUES>                                  22,549
<CGS>                                                  0
<TOTAL-COSTS>                                     18,830
<OTHER-EXPENSES>                                  10,227
<LOSS-PROVISION>                                       0
<INTEREST-EXPENSE>                                   147
<INCOME-PRETAX>                                   (6,655)
<INCOME-TAX>                                           0
<INCOME-CONTINUING>                               (6,655)
<DISCONTINUED>                                         0
<EXTRAORDINARY>                                        0
<CHANGES>                                              0
<NET-INCOME>                                      (6,655)
<EPS-PRIMARY>                                      (0.73)
<EPS-DILUTED>                                      (0.73)