Hi guys, would really appreciate an answer to this as it's driving me mental. The V sync bug in d3 is widespread and there are lots of different fixes for it depending upon what computer you have.

The issue is when the fps suddenly drops from 60 to 30 and a stutter occurs and then it goes back to normal. However, this is my question: when I set it "full screen windowed" instead of "full screen" (with v sync enabled) the fps is solid at 60 and the game runs great with no tearing. As far as I can tell there is no difference between full screen windowed and full screen, so I'm wondering why this is happening and what IS the difference?? Would really appreciate an answer as it seems bizarre. Thanks!