<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM (A)
FINANCIAL STATEMENTS FILED IN Q3 1998 QUARTERLY REPORTS ON FORM 10Q CONDENSED
CONSOLIDATED BALANCE SHEET, STATEMENT OF OPERATIONS AND QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH (B) FORM 10Q SEPTEMBER 30, 1998.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
<CURRENCY> US DOLLARS
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JUL-01-1998
<PERIOD-END>                               SEP-30-1998
<EXCHANGE-RATE>                                      1
<CASH>                                          11,898
<SECURITIES>                                    36,920
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                26,870
<PP&E>                                          11,141
<DEPRECIATION>                                   6,706
<TOTAL-ASSETS>                                  53,776
<CURRENT-LIABILITIES>                            2,404
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           204
<OTHER-SE>                                      50,893
<TOTAL-LIABILITY-AND-EQUITY>                    53,776
<SALES>                                              0
<TOTAL-REVENUES>                                   219
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                 1,990
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (1,077)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (1,077)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (1,077)
<EPS-PRIMARY>                                   (0.05)
<EPS-DILUTED>                                   (0.05)
<FN>MARKETABLE SECURITIES INCLUDE $22,422 IN LONG TERM INVESTMENTS.
</FN>