Hi, i have a iphone4 (on 02) nothing chacked or cracked on it, it all works fine, and syncs with itunes 24/7 however obv the iso is out today and when i come to sync it asks if i want to update, ok, so i do the download and update, and itunes crashes? i start again and do the download....itunes crashes? i have tried a few times (like 7 or 8) and turned off my iphone and back on....nothing.....anyone have any ideas?