<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
                                                             
<PERIOD-TYPE>                              YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1994             DEC-31-1995
<PERIOD-END>                               DEC-31-1994             DEC-31-1995
<CASH>                                         130,989                 176,500
<SECURITIES>                                     7,180                  24,504
<RECEIVABLES>                                   83,107                  85,994
<ALLOWANCES>                                     2,998                   2,771
<INVENTORY>                                        856                     660
<CURRENT-ASSETS>                               237,426                 303,343
<PP&E>                                          98,020                  94,556
<DEPRECIATION>                                  24,687                  23,836
<TOTAL-ASSETS>                                 395,358                 461,622
<CURRENT-LIABILITIES>                          100,181                 102,629
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       254,731                 268,807
<OTHER-SE>                                    (15,204)                  36,714
<TOTAL-LIABILITY-AND-EQUITY>                   395,358                 461,622
<SALES>                                        346,204                 384,461
<TOTAL-REVENUES>                               346,204                 384,461
<CGS>                                           99,545                 110,845
<TOTAL-COSTS>                                   99,545                 110,845
<OTHER-EXPENSES>                               217,779                 222,024
<LOSS-PROVISION>                                   629                     308
<INTEREST-EXPENSE>                               2,730                   2,444
<INCOME-PRETAX>                                 31,308                  57,327
<INCOME-TAX>                                     3,541                   7,468
<INCOME-CONTINUING>                             27,767                  49,859
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    27,767                  49,859
<EPS-PRIMARY>                                      .51                     .88
<EPS-DILUTED>                                      .51                     .88