This error usually means that a firewall is blocking the communication between postgresql and holdemmanager. Although your firewall may be disabled it still may block this.
Please configure exceptions:
http://faq.holdemmanager.com/questio...%28Firewall%29
If that doesn't work there may be something else wrong with your postgresql. Try this:
1. Reboot your computer
2. If that doesn't help look for the hidden system file postmaster.pid in the postgresql data folder, delete it and reboot your computer again.
3. Check the postgresql service in the windows services (control panel->administration). Sometimes it helps to change the Logon As.. to "local system account"
4. Check our FAQ:
http://faq.holdemmanager.com/questio...rt+PostgreSQL+