<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNAUDITED
CONSOLIDATED BALANCE SHEET AT SEPTEMBER 30, 1999 UNAUDITED CONSOLIDATED
STATEMENT OF OPERATIONS FOR THE SIX MONTHS ENDED SEPTEMBER 30, 1999 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-2000
<PERIOD-START>                             APR-01-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                           2,511<F1>
<SECURITIES>                                    20,998
<RECEIVABLES>                                    4,526
<ALLOWANCES>                                      (49)
<INVENTORY>                                      2,084
<CURRENT-ASSETS>                                30,550
<PP&E>                                          10,046
<DEPRECIATION>                                   5,725
<TOTAL-ASSETS>                                  37,466
<CURRENT-LIABILITIES>                            9,290
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          1
<COMMON>                                            15
<OTHER-SE>                                     (5,530)<F2>
<TOTAL-LIABILITY-AND-EQUITY>                    37,466
<SALES>                                          2,678
<TOTAL-REVENUES>                                 8,745
<CGS>                                              858
<TOTAL-COSTS>                                   18,461
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 845<F3>
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (10,561)
<EPS-BASIC>                                     (0.75)
<EPS-DILUTED>                                   (0.75)
<FN>
<F1>Includes $1 million of restricted cash, classified as a noncurrent asset
<F2>stockholder's deficit
<F3>net of interest income of $587
</FN>