<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q
FOR THE QUARTERLY PERIOD ENDED MARCH 31, 1999 AND IS QUALIFED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                      70,961,000
<SECURITIES>                                 6,004,000
<RECEIVABLES>                               44,043,000
<ALLOWANCES>                                 1,479,000
<INVENTORY>                                 11,521,000
<CURRENT-ASSETS>                           137,759,000
<PP&E>                                      81,077,000
<DEPRECIATION>                              41,446,000
<TOTAL-ASSETS>                             193,934,000
<CURRENT-LIABILITIES>                       24,866,000
<BONDS>                                     87,414,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       291,000
<OTHER-SE>                                  73,756,000
<TOTAL-LIABILITY-AND-EQUITY>               193,934,000
<SALES>                                     30,603,000
<TOTAL-REVENUES>                            33,339,000
<CGS>                                        6,528,000
<TOTAL-COSTS>                                6,528,000
<OTHER-EXPENSES>                            24,122,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           1,543,000
<INCOME-PRETAX>                              1,997,000
<INCOME-TAX>                                    73,000
<INCOME-CONTINUING>                            311,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   311,000
<EPS-BASIC>                                      .01
<EPS-DILUTED>                                      .01