Unable to send the message, the conversation couldn't be started

[Daniel Atallah]

On Thu, Jan 28, 2010 at 09:40, Scott & Ramona Worden, Timber Lake
Creations <srwtlc at gmail.com> wrote:
>  Hello,
>
> I'd like to use Pidgin for messaging on a home/business network using
> Bonjour.  One PC is Win 7 and two are Win XP.  They all see each other in
> the Buddy List and the two XP PC's can communicate, but the Win 7 one
> displays this message after attempting to send a message "Unable to send the
> message, the conversation couldn't be started".

This is most likely caused by a firewall blocking the incoming
connection that is used for the conversation.

In the "Advanced" tab of the Bonjour account settings, there is a
"Local Port" value.  You'll need to configure any firewalls to allow
connections in and out on that port.

-D