hey I the last days I have problem with my IPAD and iTunes. It works fine until yesterday, but it then indicates "windows digital signature for the drivers required for this device. a recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (code 52)" I followed APPLE's instruction but now, it is recognised as camera device. No itunes for me :-( Please help.