<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> SEP-30-1998 <CASH> 7,728 <SECURITIES> 0 <RECEIVABLES> 14,618 <ALLOWANCES> 1,512 <INVENTORY> 145 <CURRENT-ASSETS> 24,400 <PP&E> 21,029 <DEPRECIATION> 18,253 <TOTAL-ASSETS> 31,923 <CURRENT-LIABILITIES> 24,185 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 85,701 <OTHER-SE> (77,831) <TOTAL-LIABILITY-AND-EQUITY> 31,923 <SALES> 25,377 <TOTAL-REVENUES> 39,940 <CGS> 3,556 <TOTAL-COSTS> 6,797 <OTHER-EXPENSES> 29,813 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 428 <INCOME-PRETAX> 2,043 <INCOME-TAX> 204 <INCOME-CONTINUING> 1,839 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,839 <EPS-PRIMARY> 0.07 <EPS-DILUTED> 0.07