Database Connection Problem with RMySQL package

Folks,

I failed to create a connection to the database under MySQL DBMS in
the R system via RMySQL's method dbConnection(...).

My setup is as follows:

Microsoft Windows XP 5.1.2600
MySQL 4.1.9
R 2.0.1
DBI 0.1-8
RMySQL 0.5-5
Both of DBI and RMySQL packages were downloaded from bell lab:

http://stat.bell-labs.com/RS-DBI/download/index.html

My case in R is as follows:

library(DBI)
library(RMySQL)
mgr <- dbDriver("MySQL")
con <- dbConnect(mgr, user="root", pass="*******", host="localhost", dbname="campus")

Error in mysqlNewConnection(drv, ...) : RS-DBI driver: (could not
connect root at localhost on dbname "campus")

What am I doing wrong with?... It is really an annoying question.
Thank you very much for your help and patience.

Yours truly,

Willie Y CHEN
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