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CONSENT OF ARTHUR ANDERSEN LLP - EXHIBIT 23.1
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As independent public accountants, we hereby consent to the incorporation by
reference of our report included in this Form 10-K into the Company's previously
filed Registration Statements on Form S-8 (File No. 333-31914, File No. 333-
33312, File No. 333-67589, File No. 333-10253 and File No. 333-3388),
Registration Statements on Form S-3 (File No. 333-37586 and File No. 333-46813)
and Registration Statement on Form S-4 (File No. 333-53899).
Arthur Andersen LLP
San Francisco, California
July 13, 2000
