That's strange. I've downloaded the new setup to test it, but the polish language isn't working for me. Installation goes well, install process is in polish, but when program asked me to provide my login and password i saw only english texts. I checked .qm file and it's only 31 bytes (see attachement). It should be something about 147 Kb.
I thought that could be a CRC error, so I've downloaded the setup.exe once again, then third time, but the same problem exists. Every time it was a clean install.
Is there anyone with the same problem?