POWER OF ATTORNEY
Know all by these presents, that the undersigned
hereby constitutes and appoints each of Donald E.
Miller and Ernesto R. Beckford, signing singly, the
undersigned's true and lawful attorney-in-fact to:

(1) 	execute for and on behalf of the undersigned,
in the undersigned's capacity as an officer and/or
director of (the "Company"), Forms 3, 4, and 5 in
accordance with Section 16(a) of the Securities
Exchange Act of 1934 and the rules thereunder, and
any other forms or reports the undersigned may be
required to file in connection with the
undersigned's ownership, acquisition, or
disposition of securities of the Company;

(2) 	do and perform any and all acts for and on
behalf of the undersigned which may be necessary
or desirable to complete and execute any such Form
3, 4, or 5, or other form or report, and timely file
such form or report with the United States Securities
and Exchange Commission and any stock exchange or
similar authority; and

(3)	 take any other action of any type whatsoever
in connection with the foregoing which, in the
opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by,
the undersigned, it being understood that the
documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of
Attorney shall be in such form and shall contain such
terms and conditions as such attorney-in-fact may
approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such
attorney-in-fact full power and authority to do
and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as
the undersigned might or could do if personally
present, with full power of substitution or revocation,
hereby ratifying and Confirming all that such
attorney-in-fact, or such attorney-in-fact's
substitute or substitutes, shall lawfully do or
cause to be done by virtue of this power of attorney
and the rights and powers herein granted. The
undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity
at the request of the undersigned, are not
assuming, nor is the Company assuming, any of
the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full
force and effect until the undersigned is no
longer required to file Forms 3, 4, and 5 with
respect to the undersigned's holdings of and
transactions in securities issued by the Company,
unless earlier revoked by the undersigned in
a signed writing delivered to the foregoing
attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused
this Power of Attorney to be
executed as of this 12th day of December, 2003.


/s/ Natalia Hercot
Signature

Print name:  Natalia Hercot







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