<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AS OF MARCH 31, 1998 AND THE RELATED CONSOLIDATED
STATEMENTS OF OPERATIONS FOR THE THREE MONTHS IN THE PERIOD ENDED MARCH 31, 1998
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                           8,048
<SECURITIES>                                    10,806
<RECEIVABLES>                                   10,612
<ALLOWANCES>                                     1,686
<INVENTORY>                                          0
<CURRENT-ASSETS>                                30,526
<PP&E>                                           6,933
<DEPRECIATION>                                   4,725
<TOTAL-ASSETS>                                  32,973
<CURRENT-LIABILITIES>                            8,990
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        39,415
<OTHER-SE>                                    (15,552)
<TOTAL-LIABILITY-AND-EQUITY>                    32,973
<SALES>                                          5,047
<TOTAL-REVENUES>                                 5,047
<CGS>                                              545
<TOTAL-COSTS>                                    1,466
<OTHER-EXPENSES>                                 5,826
<LOSS-PROVISION>                                   146
<INTEREST-EXPENSE>                               (311)
<INCOME-PRETAX>                                (2,097)
<INCOME-TAX>                                        17
<INCOME-CONTINUING>                            (2,114)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (2,114)
<EPS-PRIMARY>                                    (.22)
<EPS-DILUTED>                                    (.22)