PostgreSQL version 9.1.3. OS is Windows XP. Anti-virus is F-Secure. Six instances of postgres.exe are running.
Here's what's in the pg_log:
2012-04-08 14:58:23 PDT LOG: incomplete startup packet 2012-04-08 14:58:24 PDT LOG: database system is ready to accept connections 2012-04-08 14:58:24 PDT LOG: autovacuum launcher started 2012-04-08 14:58:25 PDT LOG: could not receive data from client: An operation was attempted on something that is not a socket. 2012-04-08 14:58:25 PDT LOG: incomplete startup packet 2012-04-08 14:58:27 PDT LOG: could not receive data from client: An operation was attempted on something that is not a socket.
I disabled F-Secure but it made no difference. Any idea why?