IRC sBNC Problem (Bug?): Can't send messages

[hangAround]

Hello,

I would like to use a IRC Bouncer with Pidgin on a private standard 
IRC-Server. I'am able to connect with the Bouncer, could read the 
messages from other users and its also posible to type into the input 
area, but it's not posible to send the message. If i press return or try 
to use the Button-Plugin nothing happens, it doesn't matter which OS is 
used. Only if you use the /say command the tipped text is send.

Is this a already known problem? I didn't found a ticket.

Thank's for help!

hangAround