DBD::mysqlPP.pm and Timeout of authentication error

The DBD::mysqlPP module works perfectly on my Debian using MySQL v
5.0.32. My customer's Debian also uses MySQL v 5.0.32, but the same
script using DBD::mysqlPP returns this error:

Database connection not made: Timeout of authentication at
/usr/local/share/perl/5.8.8/DBD/mysqlPP.pm line 109.

Has anyone else encountered this issue? Has anyone found the reason
for the error and resolved it?

Any help would be appreciated.

--
Sincerely,

Paul Appleby