Just a few days ago I decided to try messing around with the Wii. So, I followed the (very helpful) Ultimate system menu 4.0 guide using the offline method. However, whenever I boot up the Wii and play a game, I get a weird high pitched ring. Throughout everything. Being a bit of an audiophile, this makes Rock Band 2 less than enjoyable. I tried reinstalling preloader (0.29), no dice. Any other suggestions?