<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS FOR THE NINE MONTHS ENDED DECEMBER 31, 1998 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          MAR-31-1999
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               DEC-31-1999
<CASH>                                           5,367
<SECURITIES>                                    35,853
<RECEIVABLES>                                   13,847
<ALLOWANCES>                                     1,823
<INVENTORY>                                     18,783
<CURRENT-ASSETS>                                92,196
<PP&E>                                          26,527
<DEPRECIATION>                                  15,110
<TOTAL-ASSETS>                                 122,481
<CURRENT-LIABILITIES>                           22,704
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       108,521
<OTHER-SE>                                      (1,099)
<TOTAL-LIABILITY-AND-EQUITY>                   122,481
<SALES>                                         66,907
<TOTAL-REVENUES>                                66,907
<CGS>                                           41,076
<TOTAL-COSTS>                                   41,076
<OTHER-EXPENSES>                                49,399
<LOSS-PROVISION>                                   658
<INTEREST-EXPENSE>                                  37
<INCOME-PRETAX>                                (23,568)
<INCOME-TAX>                                    (8,013)
<INCOME-CONTINUING>                            (15,555)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (15,555)
<EPS-PRIMARY>                                    (1.33)
<EPS-DILUTED>                                    (1.33)