PostgreSQL 8.3: Start service Error message

Computer 2 (POS):
I get an error message "Could not connect to server: Connection timed out.
Is the server running and accepting TCP/IP connections?
Computer 1 (Server):
When i click "Start service" for the PostgreSQL i get this message: "Local
Computer started and then stopped. Some services stop automatically if they
have no work to do"

How can i solve this, please assist...thank you.

Matthew 
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