<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AS OF MARCH 31, 1998 AND THE CONSOLIDATED STATEMENTS
OF OPERATIONS FOR THE THREE-MONTH PERIOD ENDED MARCH 31, 1998 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               MAR-31-1998
<CASH>                                       2,487,000
<SECURITIES>                                         0
<RECEIVABLES>                                6,370,000
<ALLOWANCES>                                 (576,000)
<INVENTORY>                                    255,000
<CURRENT-ASSETS>                               317,000
<PP&E>                                      17,889,000
<DEPRECIATION>                            (14,254,000)
<TOTAL-ASSETS>                              22,872,000
<CURRENT-LIABILITIES>                        7,033,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       534,000
<OTHER-SE>                                   5,120,000
<TOTAL-LIABILITY-AND-EQUITY>                22,872,000
<SALES>                                      1,833,000
<TOTAL-REVENUES>                             4,131,000
<CGS>                                          434,000
<TOTAL-COSTS>                                1,485,000
<OTHER-EXPENSES>                             6,971,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             218,000
<INCOME-PRETAX>                            (4,419,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (4,419,000)
<EPS-PRIMARY>                                   (0.08)
<EPS-DILUTED>                                   (0.08)