I was on SL a while ago, and after so long, I got a pop-up (not the SL kind, but more a Windows Pop-Up) that had just the OK button and no message. When I clicked OK, SL on my side automatically shut down. I tried logging on again, and it told me that region had begun the logout process. I was using the 64-bit Firestorm when I received the pop-up. What could be the reason for this unusual Windows Pop-up?