Connection refused errors

Hello.

I have a problem here with PostGreSQL (7.2.1) (running on Debian 3.0).
The database appears to be functioning correctly, but /var/log/syslog
is filled with the messages which look like the following:

postgres[32066]: [288403] DEBUG:  statistics collector process (pid
14965) exited with exit code 1

while /var/log/postgres.log is filled with:

postgres -d2 -v131072 -p nvplayer3 PGSTATBUFF: recvfrom(2):
Connection  re-
fused

Any suggestions or advice which may lead toward a solution would be
greatly appreciated.

Thankyou.