Version 0.4.97 is out. It fixes problems with Connect/Disconnect menus, joined channels actually go to the Join Channel -menu (and are saved for use the next time you connect), pinging works, settings are tabbed (thanks for all that reminded me about this, it's a lot better now!), server deletion works correctly and whatnot.
So a lot of fixes, hopefully this one works better.
Oh, and the problem with Polish language is also fixed, the language file was missing and Carbide.VS messed the package file so that my fallback couldn't find English language so mIRGGI wouldn't even start :P
Note If you can't upgrade, remove old version and install the new. I'm sorry about this, it seems that even though I have the same certificate files on several computers, sometimes the signature changes and the phone won't recognize the new package as the same application :P