Yesterday when i was opening an attachment through the gmail app, my phone screen went to a bright blue screen and it hangs there. Can't exit not switch my phone off. Only way is to remove the battery. However i though it was the attachment but i tried it again on my ipad and later on my s2, and its fine. It's just a normal image file sent by my Dad. I'm sure it has nothing to do with the attachment. Anyone experience a bright blue screen before and it just hangs till you remove the battery?