<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> MAR-31-1998 <CASH> 90,889 <SECURITIES> 55,350 <RECEIVABLES> 42,157 <ALLOWANCES> (4,058) <INVENTORY> 419 <CURRENT-ASSETS> 177,948 <PP&E> 23,210 <DEPRECIATION> (10,467) <TOTAL-ASSETS> 233,735 <CURRENT-LIABILITIES> 19,101 <BONDS> 100,000 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 25 <OTHER-SE> 109,333 <TOTAL-LIABILITY-AND-EQUITY> 233,735 <SALES> 35,081 <TOTAL-REVENUES> 35,081 <CGS> 10,744 <TOTAL-COSTS> 10,744 <OTHER-EXPENSES> 19,583 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 391 <INCOME-PRETAX> 5,133 <INCOME-TAX> 2,746 <INCOME-CONTINUING> 2,387 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,387 <EPS-PRIMARY> 0.10 <EPS-DILUTED> 0.09