Originally Posted by
Patvs
Installing a different version of PostgreSQL to a different port number.
Then reimporting all your hands into a new empty database, usually is the best thing to do.
BEFORE you do this:
First try to reboot.
If no help, try this:
Start > Programs > PostgreSQL > 8.x > Stop Service
Start > Programs > PostgreSQL > 8.x > Start Service
If that doesnt help delete the \postgresql\8.x\data\postmaster.pid file, if you see it. And reboot.
If that doesn't help you will have to reinstall PostgreSQL completely. This will allow you to re-connect to your old database.