I've got one major problem.
Cannot chat when I'm playing, and while playing alone, no problem

I'm on Ubuntu 9.04, using Springlobby to launch the game and with the 0.80.4.1 engine.
In Springlobby I've got no problem at all, chat is working normally, but when I start a game cannot write to anybody.
"Enter" doesn't pop up the chat, I've got to click on the name of a player for the line to appear, then I can write, but cannot send. "Enter", again, doesn't send anything... so it seems a problem with the key... I've got a Acer 6530, the keyboard has got two "Enter" keys, the main and the one in the numpad.
Layout is spanish (I bought the laptop in Spain).