<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S DOLLARS <PERIOD-TYPE> YEAR YEAR YEAR <FISCAL-YEAR-END> DEC-31-1995 DEC-31-1996 DEC-31-1997 <PERIOD-START> JAN-01-1995 JAN-01-1996 JAN-01-1997 <PERIOD-END> DEC-31-1995 DEC-31-1996 DEC-31-1997 <EXCHANGE-RATE> 1 1 1 <CASH> 25,829 16,612 5,317 <SECURITIES> 6,863 6,918 12,443 <RECEIVABLES> 12,138 7,625 6,224 <ALLOWANCES> 0 0 0 <INVENTORY> 4,425 8,737 5,710 <CURRENT-ASSETS> 50,712 40,977 30,131 <PP&E> 31,875 13,625 13,234 <DEPRECIATION> 23,558 9,031 9,962 <TOTAL-ASSETS> 59,029 45,571 33,403 <CURRENT-LIABILITIES> 11,706 10,380 6,511 <BONDS> 0 0 0 <PREFERRED-MANDATORY> 49,141 49,292 49,347 <PREFERRED> 0 0 0 <COMMON> 0 0 0 <OTHER-SE> (1,818) (14,101) (22,455) <TOTAL-LIABILITY-AND-EQUITY> 59,029 45,571 33,403 <SALES> 51,810 32,175 22,248 <TOTAL-REVENUES> 75,323 45,296 26,944 <CGS> 27,373 20,825 12,722 <TOTAL-COSTS> 36,664 25,670 15,340 <OTHER-EXPENSES> 31,388 32,741 20,319 <LOSS-PROVISION> 0 0 0 <INTEREST-EXPENSE> (1,437) (1,261) (1,052) <INCOME-PRETAX> 8,708 (11,854) (7,663) <INCOME-TAX> 488 160 184 <INCOME-CONTINUING> 8,220 (12,014) (7,847) <DISCONTINUED> 0 0 0 <EXTRAORDINARY> 0 0 0 <CHANGES> 0 0 0 <NET-INCOME> 8,220 (12,014) (7,847) <EPS-PRIMARY> 0.53 (0.77) (0.51) <EPS-DILUTED> 0.52 (0.77) (0.51)