Recently while playing DragonVale, I was trying to visit a Friend's Park. During the loading screen part of the journey, the music cut (which is normal for me). However, in its place was a low noise reminiscent of the humming of a large electrical device. It's barely audible unless I use my earphones, and it's been going on for a couple weeks (since halfway through the Chrysalis Kaleidoscope). It did cease for a day or two here and there, but it's very persistent. Is anyone else having the same problem? What could be the cause?