<ARTICLE>                     5
<RESTATED>
<MULTIPLIER>                                   1,000
<CURRENCY>                                     U.S. Dollars
                                               
                             
<PERIOD-TYPE>                    6-mos
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                          72,511
<SECURITIES>                                         0
<RECEIVABLES>                                   18,138
<ALLOWANCES>                                     1,871
 <INVENTORY>                                         0
<CURRENT-ASSETS>                                90,398
<PP&E>                                           7,053
<DEPRECIATION>                                  (3,221)
<TOTAL-ASSETS>                                 132,106
<CURRENT-LIABILITIES>                           17,602
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           285
<OTHER-SE>                                      82,856
<TOTAL-LIABILITY-AND-EQUITY>                   132,106
<SALES>                                         13,230
<TOTAL-REVENUES>                                13,230
<CGS>                                            4,556
<TOTAL-COSTS>                                    4,556
<OTHER-EXPENSES>                                14,181
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 (2,964)
<INCOME-TAX>                                    (1,126)
<INCOME-CONTINUING>                             (1,838)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    (1,838)
<EPS-PRIMARY>                                    (0.07)
<EPS-DILUTED>                                    (0.07)