<ARTICLE>                    5
<LEGEND>
This scedule contains summary financial information extracted from the
consolidated balance sheets and consolidated statements of operations found on
pages 3 and 4 of the Company's Form 10-Q for the six months ended September 30
and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER>                 1000
       
                                        
<PERIOD-TYPE>                YEAR             6-MOS
<FISCAL-YEAR-END>            MAR-31-1997       MAR-31-1997
<PERIOD-END>                 MAR-31-1997       SEP-30-1997
<CASH>                            17,349            13,378
<SECURITIES>                           0                 0
<RECEIVABLES>                     12,730            10,625
<ALLOWANCES>                       1,371             1,365
<INVENTORY>                          205               143
<CURRENT-ASSETS>                  30,212            24,295
<PP&E>                            45,829            46,320
<DEPRECIATION>                    40,866            42,019
<TOTAL-ASSETS>                    37,900            31,037
<CURRENT-LIABILITIES>             35,717            27,065
<BONDS>                                0                 0
<PREFERRED-MANDATORY>                  0                 0
<PREFERRED>                          187               187
<COMMON>                             175               178
<OTHER-SE>                        (1,134)              (52)
<TOTAL-LIABILITY-AND-EQUITY>      37,900            31,037
<SALES>                           18,821             5,900
<TOTAL-REVENUES>                  64,823            25,944
<CGS>                              7,501             1,682
<TOTAL-COSTS>                     28,104             9,356
<OTHER-EXPENSES>                  54,624            15,845
<LOSS-PROVISION>                     304                 0
<INTEREST-EXPENSE>                   400               614
<INCOME-PRETAX>                  (29,550)              835
<INCOME-TAX>                           0                 0
<INCOME-CONTINUING>              (29,550)              835
<DISCONTINUED>                         0                 0
<EXTRAORDINARY>                        0                 0
<CHANGES>                              0                 0
<NET-INCOME>                     (29,550)              835
<EPS-PRIMARY>                      (0.17)             0.03
<EPS-DILUTED>                      (0.17)             0.03