<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND CONSOLIDATED STATEMENT OF OPERATIONS, AS
RESTATED, FOUND ON PAGES 2 OR 3 OF THE COMPANY'S FORM 10-Q FOR THE YEAR TO DATE
MARCH 31, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                           1,440
<SECURITIES>                                         0
<RECEIVABLES>                                    4,400
<ALLOWANCES>                                         0
<INVENTORY>                                        539
<CURRENT-ASSETS>                                 7,296
<PP&E>                                           7,381
<DEPRECIATION>                                   5,306
<TOTAL-ASSETS>                                  17,070
<CURRENT-LIABILITIES>                            7,012
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        61,630
<OTHER-SE>                                    (53,323)
<TOTAL-LIABILITY-AND-EQUITY>                    17,070
<SALES>                                          3,985
<TOTAL-REVENUES>                                 3,985
<CGS>                                            2,142
<TOTAL-COSTS>                                    2,142
<OTHER-EXPENSES>                                   916
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                (51)
<INCOME-PRETAX>                                (1,600)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (1,600)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,600)
<EPS-PRIMARY>                                    (.17)
<EPS-DILUTED>                                    (.17)