I borrowed Rock Band 2 from a friend and got it onto my HD via USB Loader GX yesterday. Since I dont have all "Guitar Hero" or "Rockband" Name brand stuff, I tried all my periferals to make sure they work. My drum set is from GH:World Tour, so i know that works. My guitar is Blockhead and my microphone is the EA microphone (made by logitech). When I tried all these yesterday, all 3 worked. Today, my sister and I went to play the game and it said the microphone wasnt plugged in. It said I need a Logitech Microphone, and my microphone says Logitech on it. Why did it work yesterday and not 2day? BTW...I havent done any mods for about a week, so i kno i havent changed any IOS or nething.