<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS CONTAINED ELSEWHERE IN THIS FORM 10-Q, AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
       
                                                                       
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997
<CASH>                                      21,922,966              21,493,515              26,188,379
<SECURITIES>                                 6,806,804               7,864,947               7,359,598
<RECEIVABLES>                               27,111,950              28,827,474              24,906,224
<ALLOWANCES>                                 2,866,574               3,300,000               2,496,000
<INVENTORY>                                 17,483,461              16,396,389              17,274,888
<CURRENT-ASSETS>                            68,590,427              65,764,603              61,363,351
<PP&E>                                      40,859,872              47,778,943              41,769,252
<DEPRECIATION>                               5,454,306               6,631,803               7,282,033
<TOTAL-ASSETS>                             126,239,422             126,577,461             124,726,603
<CURRENT-LIABILITIES>                       13,380,456              13,355,117              13,225,016
<BONDS>                                      3,978,446               3,471,012               2,970,873
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                    83,633,313              83,633,313              83,733,393
<OTHER-SE>                                           0                       0                       0
<TOTAL-LIABILITY-AND-EQUITY>               126,239,442             126,577,461             124,726,603
<SALES>                                     13,210,219              31,266,764              41,813,336
<TOTAL-REVENUES>                            13,210,219              31,266,764              41,813,336
<CGS>                                        9,517,597              19,919,227              27,345,288
<TOTAL-COSTS>                               18,300,734              37,465,860              51,927,495
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                              99,655                 183,926                 259,557
<INCOME-PRETAX>                            (4,906,145)             (5,719,028)             (9,222,796)
<INCOME-TAX>                               (1,618,916)             (1,887,257)             (3,043,500)
<INCOME-CONTINUING>                        (3,287,229)             (3,831,771)             (6,179,296)
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                               (3,287,229)             (3,831,771)             (6,179,296)
<EPS-PRIMARY>                                    (.18)                   (.21)                   (.34)
<EPS-DILUTED>                                    (.18)                   (.21)                   (.34)