Was lucky enough to get my 38mm Apple watch Sport blue on Friday but still learning how to work it....when I did the initial pairing with my iPhone 6, I said no to Siri...now I can't get Siri to turn on. When I go to the Siri screen on watch, it's sort of 'dulled out'....says it's on, but I can't slide the slider. Thought maybe switching Siri on and off might solve the problem. But it didn't as can't slide the slider. Doesn't work either when I press and hold digital crown. Any ideas?! (Have powered watch on and off.