itunes just stops updating with out copying songs to my ipod. it'll just randomlly stop, then show the apple logo (on itunes) with nothing hapening. it doesn't even show a message saying that the ipod update is complete. the video won't transfer. i've trying re converting the video but no luck. any idea whats wrong. other videos transfer without problem. my ipod is a 30gb 5G ipod formated to windows xp pro.