I'm a new member and having lots of issues with my IPAD 4 retina. The biggest one is after upgrading IOS 7.1 I cannot connect my IPAD to either my Windows 7, or Windows Vista PCs. I get a USB not recognized error. I looked on many message boards and have tried everything except reloading ITUNES. I don't want to reload ITUNES on Windows since I'm concerned about losing Playlists. I am at the current release of ITunes which is version 18.104.22.168. What a coincidence that this occurs after upgrading both ITUNES and my IPAD? My IPAD is just over one year old.