Since I updated to the new iTunes the iTunes program doesn't "show" the Ipad when connected to the PC. I get a message on the IPad asking if I trust this PC and I confirm I do but IPad doesn't become visible. This is the home PC for this IPad and it has previously synced with it. I have tried wi-fi syncing and although it lists its home PC and says it will sync with it when it is connected to it, it doesn't seem to recognise it as its home PC nor can it be told to trust it. I have tried an iCloud backup and that worked fine. I haven't changed the ID or name of the home PC. Any ideas on what's going wrong?