<ARTICLE> 5 <RESTATED> <PERIOD-TYPE> YEAR YEAR <FISCAL-YEAR-END> MAR-31-1997 MAR-31-1996 <PERIOD-START> APR-01-1996 APR-01-1995 <PERIOD-END> MAR-31-1997 MAR-31-1996 <CASH> 5,191,898 4,582,840 <SECURITIES> 0 0 <RECEIVABLES> 1,665,935 662,992 <ALLOWANCES> (613,623) (154,677) <INVENTORY> 3,284,632 2,185,355 <CURRENT-ASSETS> 10,303,161 7,696,014 <PP&E> 1,887,921 1,465,474 <DEPRECIATION> (1,106,976) (971,532) <TOTAL-ASSETS> 21,079,336 15,674,568 <CURRENT-LIABILITIES> 2,727,545 1,877,522 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 0 0 <COMMON> 36,860,205 25,857,132 <OTHER-SE> (20,611,495) (12,060,086) <TOTAL-LIABILITY-AND-EQUITY> 21,079,336 15,674,568 <SALES> 5,090,861 1,704,390 <TOTAL-REVENUES> 5,090,861 1,704,390 <CGS> 3,648,539 3,324,757 <TOTAL-COSTS> 11,139,711 7,556,322 <OTHER-EXPENSES> (75,493) (99,037) <LOSS-PROVISION> 0 0 <INTEREST-EXPENSE> 0 0 <INCOME-PRETAX> (5,973,357) (5,752,895) <INCOME-TAX> 0 0 <INCOME-CONTINUING> (5,973,357) (5,752,895) <DISCONTINUED> 0 0 <EXTRAORDINARY> 0 0 <CHANGES> 0 0 <NET-INCOME> (5,973,357) (5,752,895) <EPS-PRIMARY> (1.02) (1.26) <EPS-DILUTED> (1.02) (1.26)