If you are a bit torrent user and use Azureus I would stay away from version 2.3.  My copy just drops all the time.  Doesn’t get a Windows error reporting screen or anything, just dies after a few minutes.  I downgraded and now that version is doing it too.  Not sure what I’m going to do.  Just to clarify, I have done the following:

-Cleared my Application Data
-Grabbed newest version of Java
-Ran Beta 3
-Punched my LCD

I’m going to go look for another client for now, I love this app and have been very faithful, but I’m not the only one having issues and there isn’t a ton of help from the dev. team.  Hopefully it gets fixed, I’ll like to keep using it. If anyone has suggestions use and I have a free CD for whoever gets my version stable.