I have tried the above on different computers with iTunes 10 and on different USB ports. I have completely uninstalled all Apple products and reinstalled with all apps up to date.
I have tried the above in normal mode, DFU mode (blank screen), and recovery mode (connect to iTunes screen). The 4 drivers that appear (iPod USB, Mobile Device USB, Recovery (DFU), and Recovery (iBoot) give me code 10 errors (device cannot start). I have tried updating the driver software manually fromĬ:\System\inf -code 43, windows has stopped this device because it has reported problemsĬ:\Program Files\Common Files\Apple\Mobile Device Support\Drivers\usbaapl64.inf I have tried reinstalling the driver software (uninstall -> scan for new hardware) In device manager, it comes up under USB Controllers-> Apple Mobile Device USB Driver (with an exclamation point) or as Unknown Device (also with an exclamation point). My iPod is working just fine, except Windows and iTunes does not recognize it. I'm not really sure why this has happened- I haven't done any serious changes to my iPod or computer, hardware or software.