<ARTICLE> 5
       
                                                  
<PERIOD-TYPE>                   3-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JUL-01-1996             JAN-01-1996
<PERIOD-END>                               SEP-30-1996             SEP-30-1996
<CASH>                                      97,568,929              97,568,929
<SECURITIES>                                31,008,459              31,008,459
<RECEIVABLES>                                7,783,573               7,783,573
<ALLOWANCES>                                 1,922,998               1,922,998
<INVENTORY>                                    595,115                 595,115
<CURRENT-ASSETS>                           137,200,889             137,200,889
<PP&E>                                       1,010,862               1,010,862
<DEPRECIATION>                                 360,085                 360,085
<TOTAL-ASSETS>                             137,851,666             137,851,666
<CURRENT-LIABILITIES>                        6,031,511               6,031,511
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        26,521                  26,521
<OTHER-SE>                                 131,992,069             131,992,069
<TOTAL-LIABILITY-AND-EQUITY>               137,851,666             137,851,666
<SALES>                                     11,685,801              28,958,658
<TOTAL-REVENUES>                            11,685,801              28,958,658
<CGS>                                        1,240,597               3,454,252
<TOTAL-COSTS>                                1,240,597               3,454,252
<OTHER-EXPENSES>                             5,697,400              14,505,140
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                              6,303,962              14,028,550
<INCOME-TAX>                                   990,004               2,244,173
<INCOME-CONTINUING>                          5,313,958              11,784,377
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 5,313,958              11,784,377
<EPS-PRIMARY>                                     0.19                    0.44
<EPS-DILUTED>                                     0.19                    0.44