I have tried everything short of reinstalling windows 7 on my computer but I can't figure out my my itunes will not back up my iphone or ipad. There is not even a option to back up. I tried deleting the old backups from my 3gs. Restarted countless times. Hard resets on the iphone and ipad but no luck. I have uninstalled itunes and reinstalled it a couple of times. If there is any suggestions please let me know. (latest itunes and all updates for windows 7 ultimate are installed)