<ARTICLE> 5 <PERIOD-TYPE> 6-MOS 6-MOS <FISCAL-YEAR-END> DEC-31-1996 DEC-31-1995 <PERIOD-START> JAN-01-1996 JAN-01-1995 <PERIOD-END> JUN-30-1996 JUN-30-1995 <CASH> 14,150 30,417 <SECURITIES> 27,836 36,211 <RECEIVABLES> 19,836 32,387 <ALLOWANCES> 1,800 1,600 <INVENTORY> 1,277 1,063 <CURRENT-ASSETS> 83,002 112,070 <PP&E> 34,358 27,987 <DEPRECIATION> 13,340 9,284 <TOTAL-ASSETS> 174,379 189,968 <CURRENT-LIABILITIES> 23,452 24,339 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 0 0 <COMMON> 270 265 <OTHER-SE> 147,553 164,543 <TOTAL-LIABILITY-AND-EQUITY> 174,379 189,968 <SALES> 48,896 59,545 <TOTAL-REVENUES> 57,135 65,397 <CGS> 5,235 3,653 <TOTAL-COSTS> 10,882 8,479 <OTHER-EXPENSES> 0 0 <LOSS-PROVISION> 0 0 <INTEREST-EXPENSE> 0 0 <INCOME-PRETAX> (27,092) 27,285 <INCOME-TAX> (5,503) 10,121 <INCOME-CONTINUING> (21,589) 17,164 <DISCONTINUED> 0 0 <EXTRAORDINARY> 0 0 <CHANGES> 0 0 <NET-INCOME> (21,589) 17,164 <EPS-PRIMARY> 0 0 <EPS-DILUTED> (.80) .61