<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AS OF JUNE 30, 1998 AND THE RELATED CONSOLIDATED
STATEMENT OF OPERATIONS FOR THE SIX MONTHS IN THE PERIOD ENDED JUNE 30, 1998 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                           7,326
<SECURITIES>                                    11,925
<RECEIVABLES>                                    9,877
<ALLOWANCES>                                     1,700
<INVENTORY>                                          0
<CURRENT-ASSETS>                                30,564
<PP&E>                                           7,165
<DEPRECIATION>                                   5,071
<TOTAL-ASSETS>                                  32,967
<CURRENT-LIABILITIES>                            9,395
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        39,637
<OTHER-SE>                                    (16,181)
<TOTAL-LIABILITY-AND-EQUITY>                    32,967
<SALES>                                         11,098
<TOTAL-REVENUES>                                11,098
<CGS>                                            1,237
<TOTAL-COSTS>                                    3,091
<OTHER-EXPENSES>                                11,114
<LOSS-PROVISION>                                   177
<INTEREST-EXPENSE>                               (571)
<INCOME-PRETAX>                                (2,613)
<INCOME-TAX>                                        37
<INCOME-CONTINUING>                            (2,650)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (2,650)
<EPS-PRIMARY>                                    (.27)
<EPS-DILUTED>                                    (.27)