<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-QSB
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               MAR-31-1996             JUN-30-1996             SEP-30-1996
<CASH>                                       4,753,031              11,615,039               8,600,991
<SECURITIES>                                 7,998,417                       0                       0
<RECEIVABLES>                                  486,871               1,109,236               1,408,176
<ALLOWANCES>                                     5,000                  24,000                  54,000
<INVENTORY>                                    136,042                 215,353                 343,277
<CURRENT-ASSETS>                            13,399,562              13,012,501              10,691,807
<PP&E>                                         549,263                 883,898               1,147,797
<DEPRECIATION>                                 177,768                 211,980                 270,882
<TOTAL-ASSETS>                              13,847,616              13,818,412              11,718,648
<CURRENT-LIABILITIES>                        1,219,904               2,052,602               3,030,260
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                  62,265
<PREFERRED>                                          0                       0                       0
<COMMON>                                        59,632                  61,976                       0
<OTHER-SE>                                  12,561,390              11,668,989               8,595,748
<TOTAL-LIABILITY-AND-EQUITY>                13,847,616              13,818,412              11,718,648
<SALES>                                      2,735,875               5,807,504               9,386,290
<TOTAL-REVENUES>                             2,753,163               5,863,784               9,457,534
<CGS>                                          506,087               1,098,326               1,805,601
<TOTAL-COSTS>                                3,180,281               9,136,668              15,528,012
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                     0                  19,000                  30,000
<INTEREST-EXPENSE>                                   0                       0                       0
<INCOME-PRETAX>                              (262,401)             (2,952,252)             (5,638,056)
<INCOME-TAX>                                         0                       0                       0
<INCOME-CONTINUING>                          (262,401)             (2,952,252)             (5,638,056)
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                 (262,401)             (2,952,252)             (5,638,056)
<EPS-PRIMARY>                                    (.05)                   (.50)                   (.95)
<EPS-DILUTED>                                    (.05)                   (.50)                   (.95)
        

</TABLE>