Ack, I've completed all the levels, most of the golden eggs and was well on my way to 3 Star success in all maps... and now AB won't open. I click and it just blank screens then back to the home screen. I am not wanting to unistall reinstall and lose my progress.. Any ideas how I can get it back? It worked fine last night! I did a reset but still same problem (holding power and home key until apple logo appears).