All of a sudden (worked fine before) I cant boot my ipod. I get into DFU mode just fine like normal, run the boot application and my ipod shows the apple logo like normal. However when the apple logo goes off, instead of the lock screen the screen just goes black and my ipod is unrecognized again... Worked fine before. I guess I gotta restore - which im not too bothered about as I will try the new semi-tethered.