WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

  

<ARTICLE> 5
<CIK> 0000920354
<NAME> 
<MULTIPLIER> 1000
<CURRENCY> U.S. Dollars 
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-1996
<PERIOD-START>                             OCT-01-1995
<PERIOD-END>                               MAR-31-1996
<EXCHANGE-RATE>                                      1
<CASH>                                           7,407
<SECURITIES>                                    35,842
<RECEIVABLES>                                   19,904
<ALLOWANCES>                                     1,557
<INVENTORY>                                          0
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<PP&E>                                          12,220
<DEPRECIATION>                                   9,541
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<CURRENT-LIABILITIES>                           17,443
<BONDS>                                              0
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<COMMON>                                            96
<OTHER-SE>                                      51,379
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<SALES>                                         18,809
<TOTAL-REVENUES>                                32,563
<CGS>                                            1,600
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<OTHER-EXPENSES>                                18,365
<LOSS-PROVISION>                                   324
<INTEREST-EXPENSE>                                  30
<INCOME-PRETAX>                                  6,627
<INCOME-TAX>                                     3,052
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<CHANGES>                                            0
<NET-INCOME>                                     3,575
<EPS-PRIMARY>                                      .36
<EPS-DILUTED>                                      .36