Perhaps it's simply the recent server problems at LiveJournal? What happens is that iJournal simply hangs (rainbow spin cycle ball pops up) once the application's opened - and I can't type anything at all into the window. I had previously thought that this was only a problem with the autologin, but I just had to force-quit iJournal because I was experiencing the same problem after deleting my preferences (and thus, logging in manually).
This seems to have been the only problem for me thus far. If it helps, the status bar is working while iJournal hangs - which is partly the reason I think it might be a problem at LiveJournal's end; I have a DSL connection to the internet.