pt "Português" translation #2469. Author: Brian.
el "Ελληνικά" translation #2473. Author: Γιάννης Ανθυμίδης / Yannis Anthymidis. 'No message here yet' should really, really be rephrased to 'No new messages'. '%s players' should be '%s connected players'. Just saying. ;)
pl "polski" translation #2477. Author: Nie umiem grac w szachy.