<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR 3-MOS <FISCAL-YEAR-END> DEC-31-1998 DEC-31-1999 <PERIOD-START> JAN-01-1998 JAN-01-1999 <PERIOD-END> DEC-31-1998 MAR-31-1999 <CASH> 3,982 4,397 <SECURITIES> 0 0 <RECEIVABLES> 5,862 4,846 <ALLOWANCES> 235 204 <INVENTORY> 688 994 <CURRENT-ASSETS> 10,717 10,788 <PP&E> 3,344 3,590 <DEPRECIATION> 2,327 2,499 <TOTAL-ASSETS> 11,870 12,379 <CURRENT-LIABILITIES> 6,247 6,381 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 12 12 <COMMON> 4 4 <OTHER-SE> 4,769 5,287 <TOTAL-LIABILITY-AND-EQUITY> 11,870 12,379 <SALES> 21,051 6,428 <TOTAL-REVENUES> 21,051 6,428 <CGS> 3,182 817 <TOTAL-COSTS> 5,957 1,720 <OTHER-EXPENSES> 14,316 4,392 <LOSS-PROVISION> 88 31 <INTEREST-EXPENSE> 183 51 <INCOME-PRETAX> 737 308 <INCOME-TAX> 34 20 <INCOME-CONTINUING> 0 0 <DISCONTINUED> 0 0 <EXTRAORDINARY> 0 0 <CHANGES> 0 0 <NET-INCOME> 703 288 <EPS-PRIMARY> 0.21 0.08 <EPS-DILUTED> 0.05 0.02