I spent 10+ hours over the past month trying all the fixes people came up with to fix or alleviate the pre-existing stuttering problems that are very well known. A couple weeks ago I was finally able to get the game running smooth. Very smooth, no stuttering and constant 60 FPS.
Now comes patch 1.0.3......
EVERY SINGLE TIME my mouse hovers over a selectable item or character, the FPS gets absolutely crushed. Like 10-15 FPS. It makes the game totally unplayable. If I accidentally move my mouse over an item on the ground in the middle of the fight, the stutter is so bad that I can't play properly. I've already died 5 times tonight because of this and I've had enough.
HOW ON EARTH DID BLIZZARD LET THIS PATCH OUT IN THIS STATE