Hi. just wondering if anyone can help. i am pulling my hair out. i upgraded to itunes 10 and since doing so have not been able to update my iphone 4. when i plug my iphone in itunes recognises it but just freezes on step 1 of 5 backing up. i have left it for hours and it doesnt budge. it does say when i plug my phone in that a new update is available and if i click continue it says that i have unbacked up content which should be backed up before i upgrade, ive tried clicking continue and later with the same result of itunes freezing. im running windows 7. any help would be greatly appreicated. Thank you.