1.7.2 Patch Bug For Minecraft on Mac #1

Hello to who reads this! I have recently found a few bugs inside the Mac version of Minecraft and I wanted to present them so that I can play my survival game in peace . One of the first bugs I noticed when going into my saved game for the first time after the 1.7.2 patch was that the mouse cursor does not disappear from the screen after I leave any screen that has you using the mouse cursor. However this is not the case when starting a new game. I know its a small bug but, I just do not like seeing it on the screen when I am playing. This is not the first bug I ran into when play my old save file in the new 1.7.2 patch and I will continue to post them. I believe the bugs that I am posting have something to do with old save file updating to the 1.7.2 patch incorrectly. Thank you for your time!