Creating Postgresql database from other machine

I'm trying to create a new Postgresql database using a template. I'm trying to do it from PGAdmin on another machine.

I keep getting 'template is open' errors. One source on the web said this problem occurs if somebody else has PGAdmin open - so make sure there aren't any other instances of PGAdmin running.

I restarted Postgresql, made sure only on PGAdmin was open, and it worked perfectly.