<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> SEP-30-1996 <CASH> 6,309 <SECURITIES> 32,926 <RECEIVABLES> 17,814 <ALLOWANCES> (615) <INVENTORY> 632 <CURRENT-ASSETS> 61,724 <PP&E> 10,665 <DEPRECIATION> (4,718) <TOTAL-ASSETS> 74,350 <CURRENT-LIABILITIES> 14,883 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 23 <OTHER-SE> 58,880 <TOTAL-LIABILITY-AND-EQUITY> 74,350 <SALES> 49,689 <TOTAL-REVENUES> 49,689 <CGS> 20,232 <TOTAL-COSTS> 20,232 <OTHER-EXPENSES> 24,188 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 438 <INCOME-PRETAX> 6,511 <INCOME-TAX> 1,766 <INCOME-CONTINUING> 4,745 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 4,745 <EPS-PRIMARY> 0.20 <EPS-DILUTED> 0.19