1 EXHIBIT 23.01 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANT As independent public accountants, we hereby consent to the incorporation of our report dated January 17, 2000 included in this Form 10-K, into the Company's previously filed Registration Statements on Form S-8 (File nos. 333-31484, 333-78087, 333-51945, 333-40645 and 333-38363). Arthur Andersen LLP ARTHUR ANDERSEN LLP Boston, Massachusetts March 27, 2000