Help! Driver cannot be loaded.

Dear Sir or Madam,

I got an error as per subject. Following is my
configurations:

Server: Red Hat Linux 7.1
PostgreSQL: 7.1.2
JDBC Driver: jdbc7.1-1.2.jar
IP: 192.168.0.1

Client: Windows 98
JDBC Driver:
first time: jdbc7.1-1.2.jar
second time: jdbc7.1-1.3.jar
IP: 192.168.0.3

Driver: org.postgresql.Driver
URL: jdbc:postgresql:heithere

where heithere is the db name.
I use a cross-wired line to connect the server and
client. The connection
has no problem. I started postmaster with the
parameter -i for TCPIP
connection and -D for the db location.

I wrote a small test program using jBuilder. It runs
correctly on the server. However, when I run it on the
client, it got the error. Please help.

Best Regards,

Brian

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