Well, I'm going to upgrade to 4.0 because of the SD Card support and I've read some guides, but I'm still a bit confused. I have a wii backup and gamecube backup launcher, so do I have DVDx installed? And once on 4.0 can you install DVDx? Also I think I have CIOS installed, but how can I tell which version I have installed, if any? Okay...thanks in advance. Sorry for being so n00bish.