I'm having a small problem with irssi and the encryption/decryption plugin blowssi. When I send messages I can see my scandinavian letters (äöå) correctly, but when someone else sends encrypted messages, the characters aren't displayed correctly (instead, it shows a question mark sign). Without encryption I can see all the characters correctly (tested with the same person). Besides the öäå characters I can see the decrypted messages just fine.
Any idea how to fix this? I have all the required dependencies installed, I'm running Arch Linux with 2.6.27-ARCH kernel and I'm on a 64bit installation. Irssi version is 0.8.12 and blowssi is 0.0.2 or the latest available (at least on the official site).