<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS FINANCIAL INFORMATION EXTRACTED FROM THE RESTATED
CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS FOUND ON
PAGES 28 AND 29 OF THE COMPANY'S FORM 10-K FOR THE YEAR ENDED 12/31/97 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           1,938
<SECURITIES>                                         0
<RECEIVABLES>                                    3,045
<ALLOWANCES>                                         0
<INVENTORY>                                        460
<CURRENT-ASSETS>                                 6,209
<PP&E>                                           7,960
<DEPRECIATION>                                   5,690
<TOTAL-ASSETS>                                  15,836
<CURRENT-LIABILITIES>                            8,186
<BONDS>                                              0
<PREFERRED-MANDATORY>                            2,682
<PREFERRED>                                          0
<COMMON>                                        61,600
<OTHER-SE>                                    (60,162)
<TOTAL-LIABILITY-AND-EQUITY>                    15,836
<SALES>                                         17,773
<TOTAL-REVENUES>                                17,773
<CGS>                                            9,383
<TOTAL-COSTS>                                    9,383
<OTHER-EXPENSES>                                 4,155
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               (447)
<INCOME-PRETAX>                                (8,439)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (8,439)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (8,439)
<EPS-PRIMARY>                                    (.90)
<EPS-DILUTED>                                    (.90)