<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AND STATEMENT OF OPERATIONS 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-31-1998
<CASH>                                           1,350
<SECURITIES>                                     9,050
<RECEIVABLES>                                    3,614
<ALLOWANCES>                                      (32)
<INVENTORY>                                      1,425
<CURRENT-ASSETS>                                16,239
<PP&E>                                           8,304
<DEPRECIATION>                                 (5,002)
<TOTAL-ASSETS>                                  19,926
<CURRENT-LIABILITIES>                            7,970
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          1
<COMMON>                                            15
<OTHER-SE>                                       9,680
<TOTAL-LIABILITY-AND-EQUITY>                    19,926
<SALES>                                          3,774
<TOTAL-REVENUES>                                10,983
<CGS>                                              977
<TOTAL-COSTS>                                   21,130
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               (585)<F1>
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (9,562)
<EPS-PRIMARY>                                   (0.72)<F2>
<EPS-DILUTED>                                   (0.72)<F2>
<FN>
<F1>Interest and other income - net
<F2>Includes Series B convertible preferred stock dividend of $1.5 million
</FN>