Hi all, My new MacBook Pro 13" just arrived, replacing a 2009 MacBook Pro of the same size. Using my Magic Mouse on the MBP when I have programs starting up, or running something intensive in the background, the mouse pointer stutters and is not smooth at all. The mouse worked fine today with my older MBP. When I move the pointer using my trackpad it is very smooth with no stuttering or lagging. I've restarted the computer and also replaced the batteries in the mouse. I've also also reconnected the mouse numerous times. Should I send the computer back - is this potentially part of a more serious fault or just the bluetooth not being too good on the new models? Should I just use a wired mouse instead? Would a replacement work any better? Sorry about all the questions, but I am just a bit uncertain on what to do.