Makes you wonder, did they try rebooting? 203 flights cancelled "Hi, thank you for calling M$ ATC support, how can I help you? ... Ok, so all your planes are missing? Have you tried rebooting your Air Triffic Control systems? No, well sir, I can't help you until you do that...OK, now all you see is a blue screen, well that means you have to upgrade to ATC 3.11 sir. I will pass you to sales."