For some reason, ever since I updated my iPhone (3G) to 2.1, I can't seem to get updates on it. When it searches for updates, it'll usually end up as a blank page, even when I know there are updates on iTunes. Sometimes, it simply doesn't finish loading instead. Does anyone know how to fix this? I'd rather not have to restore (I've jailbroken and have gone through a fair bit of theming and so on) so if anyone has a simpler solution I'd really appreciate it, thanks.