POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
hereby constitutes and appoints William W. Staunton III and Greg B. Jones, or
either of them, his attorneys-in-fact and agents, each with full power of
substitution for him and in his name, place and stead, in any and all
capacities, to sign any or all amendments to this Registration Statement, and
to file the same with all exhibits thereto and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto each of
said attorneys-in-fact and agents full power and authority to do so and
perform each an every act and thing requisite and necessary to be done in
connection with this Registration Statement, as fully to all intents and
purposes as he might or could do in person, hereby ratifying and confirming
all that either of said attorneys-in-fact and agents, or his substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed by the following persons in the capacities and on
the dates indicated.

Signature                      Title                             Date
---------------------------    ------------------------------    -------

/S/ L. David Sikes             Chairman of the Board             7-30-01
---------------------------
L. David Sikes

/S/ William W. Staunton III    Director, Chief Executive         7-30-01
---------------------------    Officer
William W. Staunton III

/S/ Greg B. Jones              Director, President, Technology   7-30-01
---------------------------    Group
Greg B. Jones

/S/ William G. Howard
---------------------------    Director                          7-30-01
William G. Howard

/S/ Albert J. Hugo-Martinez
---------------------------    Director                          7-30-01
Albert J. Hugo-Martinez

/S/ Eric A. Balzer
---------------------------    Director                          7-30-01
Eric A. Balzer

/S/ Harald Eggers
---------------------------    Director                          7-30-01
Harald Eggers

/S/ Klaus Fleischmann
---------------------------    Director                          7-30-01
Klaus Fleischmann

/S/ LuAnn D. Hanson            Chief Financial Officer           7-30-01
---------------------------    and Vice President of Finance
LuAnn D. Hanson
                                    Page-1