I have the same issue even though I have uninstalled Yahoo weather. There is no longer a Flickr ad, but it still keeps opening automatically. Not every time but sometimes. Must be some ad program running. Anyone knows of a good Flickr block?
I have exactly the same issue even though I use the pattern so it does not seem to have anything to do with the weather app. Looks like Flickr is preinstalled to open when I unlock the phone. So anoying