So I and many others(with intergraded GPUs) have had problems with the screen freezing while zooming on the main map. After ever build the setting reset and I redo them, recently though I turned off anti-alising and my fps has gone up exponential, as well as no issues while zooming. I only had it on anitalising 4x though,but it might be something to look into SD, or if you are a person like me that had this issue turn it off and see the difference.
DARCA. 
