4 Replies Latest reply: Nov 29, 2012 10:20 AM by naturecollision
tewright Level 1 Level 1 (0 points)



I seem to have a problem with the mouse cursor in the Mail app on my mid-2010 MacBook Pro 15" i5 with 8GB RAM running Mountain Lion. When I open a compose window, the mouse cursor is very laggy in the main body pane. It makes it very difficult to select any text. It resumes normal speed when the mouse is moved out of the compose window or simply up to where the address and subject fields are.


I've just upgraded the Mac myself from 4GB to 8GB using Crucial 1067MHz modules. I'm sure this isn't related as everything else is fine!


Does anyone else see this?



MacBook Pro, OS X Mountain Lion (10.8.2), mid-2010 15" 2.4GHz i5, 8GB RAM