So I updated my Wii with the 4.0 loader no problem. I did the same with my friends' Wii, making sure all of the cIOSes were installed, etc. The update seemed to go through properly. Then I tried to load the HDD loader program and it said that the HDD is no longer formatted and asked me to format. I tried on both USB ports and the same problem. I plugged the drive into the computer, and the program detected games on the drive. It worked perfectly before the upgrade too. In addition, the homebrew channel isn't loading either. I just get a black screen and it hangs indefinitely. I ran an update on it before running the 4.0 upgrade. I also did this on my other system with no problems. It seems to work fine otherwise, I'm able to play VC games, etc. Has this happened to anyone else? Any ideas?