Fullscreen definitly seems to be not working properly and now also I'm getting quite a few crashes along with the freezes, stutters and fps drop that had been greatly reduced by the previous patch.
Enemy aircraft seem easier to shoot down now which is way better and ive noticed the damage model being applied to AI more, for example i fired at a 109 and i could see his damage better and his wheel on the right slowly came down. Was very impressed with that.