[Mono-list] Npgsql sample does not run, if manually compiled

[mbwl at manfbraun.de]

Hello !

This was a problem with my hosts file :-(

I am very sorry. The two - called "identical" - written programs differs in
accessing the db server by name. The machine - a VM - was restored from
scratch and contained a mismatch between hosts and postgres config.
The message from Npgsql - connection refused - was really right :-(

My fault! A BIG SORRY!

br++mabra