<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                          23,521
<SECURITIES>                                    20,074
<RECEIVABLES>                                    6,858
<ALLOWANCES>                                     1,001
<INVENTORY>                                        296
<CURRENT-ASSETS>                                53,707
<PP&E>                                           7,388
<DEPRECIATION>                                   4,622
<TOTAL-ASSETS>                                  66,889
<CURRENT-LIABILITIES>                           31,331
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        37,084
<OTHER-SE>                                     (3,909)
<TOTAL-LIABILITY-AND-EQUITY>                    66,889
<SALES>                                         13,698
<TOTAL-REVENUES>                                13,698
<CGS>                                            2,579
<TOTAL-COSTS>                                    2,579
<OTHER-EXPENSES>                                 8,535
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  (672)
<INCOME-TAX>                                       270
<INCOME-CONTINUING>                              (402)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     (402)
<EPS-PRIMARY>                                   (0.04)
<EPS-DILUTED>                                   (0.04)