Strange PostgreSQL 7.3.3 +RT3.0.2 behaviour = connection to database not closing when logging out

Hello
I have strangee RT behaviour on my installation: connecxtions to database are forking but not closing when loffing out.
Please advise.
UNIX is user friendly.
It’s just very selective about who it’s friends are.
Sincerely Yours, Andrey Loginov
AVL40-RIPE