EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our reports included in this Form 10-K, into the Company's previously filed Form S-8 Registration Statements File Nos. 33-38621, 33-80582, 33-59497 and 333-08139. ARTHUR ANDERSEN LLP Salt Lake City, Utah March 20, 2001 42