When i have automatic calculation on, excel freezes. When i push the escape key i get focus back to excel but then it nearly immediatley loses focus again. I have to keep hitting excel to navigate anywhere with excel. By turning calculations to manual it no longer freezes. Is there a way to identify whats causing this freeze, I went through and deleted nearly all events? Why would auto calculate freeze excel if no changes are being made to a formula? What exactly is escape doing to give me focus back temporarily? Thanks!