Problem with postgreSQL (number of backends)

Hi,

i have problems with PostgreSQL 7.0.3 on a RedHat 6.2 System. Very often
postgresql post me the following warning and error message.


Warning: Unable to connect to PostgreSQL server: Sorry, too many clients
already in /home/server/...
PostgreSQL said: Unable to connect to server


It seems to be a problem with buffers and backends. So i have restart the
postmaster with the parameters "/usr/bin/postmaster -N 256 -B 512 " ... (i
put these parameters in the file "postmaster.opts" in the postgresql data
folder).But it seems to have no effect. The problem still exist.

I need help

thx


Konstantin