Sorry if this is a repeat but I've searched high and low and can't find any specific answer to my problem. Here's what happened: I reformatted an iPod nano 4g to windows because I needed the use of data transfer between my mb pro and a windows pc. Worked fine and I used it as a hard disk to transfer files between the two platforms. But now I cannot get it back to mac ipod mode. When I plug it in to the mp pro, it appears on the desktop as a hard disk. Also iTunes opens, but the device is NOT recognized and I can't do anything with it through iTunes. I have already tried iPod restore, and the buttons for restore etc. all remain faded, i.e. iPod restore does not recognize the device either. I have tried plugging the ipod into the mb pro while in disk mode and also tried running the diagnostic tests on the ipod. Any ideas how I can bright this thing back into line and use it as a mac ipod? I don't care about losing data etc. on the iPod. I just want a complete wipe and restore, but I can't find any way to reach it. Cheers and many thanks..