I have to keep reloading the Google Earth app on my Ipad2. The same problem has occured four or five times. When I start Google Earth and it zooms in, all i see is a blue grey screen (not a blurry one). Deleting the app and reloading it is required to make it operational. This only happens about once in every thirty or forty times I use it.
Ipad2, 64 GB wifi version