White Circle of Death and CTD

OK, I have been CTD all day. It did work by doing a complete restart but now it gets to the opening screen( with the picture of the piper cub i think and Rhino) and at the bottom right corner is the white circle of death and it sticks right there and nothing else. What is new is, It says now that an update is available and to go to the store and install it but i dont see any update there. Does anyone know where this update is? it might fix the CTD issue