I did a wad installation of cIOS 14 twice yesterday (had the HD plugged into the usb port that can't detect it the first time, was unplugged the 2nd time). So now one usb port can't detect my HD but the other can - Meant to be this way cIOS rev 10 worked with both usb ports, anything from rev 12(iirc, could have been 11) only works with 1. The other port which cant detect the hard drive is used for usb devices such as rockband guitar hero, etc. I think I have read going back to cIOS 10 will correct this problem. Questions: 1. Is it safe to install cIOS while the HD is plugged in? Yes 2. Will going back to cIOS 10 fix the problem? Yes 3. What is the deal with cIOS's 222/223 (what do they do, how to install, etc.)? cIOS 222/223 are cIOS's made by Hermes. They are a merge between two IOS's to make one cIOS with the benefits and features of both the IOS's. cIOS 223 is quite useful for games like Rockband that use usb peripherals. 4. Someone told me about having 2 cIOS installed at once (is this safe to do because it sounds awesome?): install cIOS_r14 from Wi-Fi and it installs it on IOS249 and IOS250. Then installed cIOS_r10 from .wad and now have cIOS_r10 as IOS249 and cIOS_r14 as IOS250. Use IOS249 for all your games, and when you have troubles with some games like sd gundam g generation wars, set the game to use IOS250 on CFG loader...!! Please give some answers so I can calm my nerves, thanks a lot!