<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                          21,417
<SECURITIES>                                    34,101
<RECEIVABLES>                                   13,592
<ALLOWANCES>                                       910
<INVENTORY>                                        940
<CURRENT-ASSETS>                                79,234
<PP&E>                                           4,440
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                  84,435
<CURRENT-LIABILITIES>                           25,294
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,192
<OTHER-SE>                                      57,973
<TOTAL-LIABILITY-AND-EQUITY>                    84,435
<SALES>                                         15,440
<TOTAL-REVENUES>                                23,160
<CGS>                                            3,124
<TOTAL-COSTS>                                    7,568
<OTHER-EXPENSES>                                 2,486
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 758
<INCOME-PRETAX>                                  6,717
<INCOME-TAX>                                     2,284
<INCOME-CONTINUING>                              4,433
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,433
<EPS-PRIMARY>                                     0.37<F1>
<EPS-DILUTED>                                     0.35
<FN>
<F1>Information has been prepared in accordance with SFAS No. 128. Basic and
diluted EPS have been reported in place of primary and fully diluted.
</FN>