Hi, I use Logitech's own iPhone app on my iPhone 3GS as my main controller. I've used it with my system for ages without any problem. But recently, it asks me to sign into my mysqueezebox account every time I open the app. Well not quite every time I open it - if I've had it open recently then it's ok. Access via my Duet controller is fine. I have a couple of Duet receivers, and my library is on a QNAP TS-210. Any ideas what's happened?