I am about to bounce this Magic Mouse off the wall. When I first got it, it was always on and connected to my Macbook Pro. When I turned on my Macbook Pro my Magic Mouse was at the ready from the very beginning, never had to fiddle with or adjust any settings. However my MBP took a dive after a failed Windows install and I had to rebuild it. Ever since the Magic Mouse refuses to work the way it used to. I have to pull a wired mouse out of my desk every single day, log in, and then coerce the stupid magic mouse to finally connect through a process of turning it on and off and trying to connect through bluetooth. I'm sick of the whole thing and often times I just used the wired mouse all day because I'm so annoyed by the Magic Mouses's refusal "to just work". My co-workers are all Windows fanboys and they just love to bust my chops about this stupid magic mouse causing me so much frustration, when it used to work exactly the way I wanted and expected it to! So please- someone explain to me why the mouse no longer connects automatically when I turn my computer on the way that it used to. I have searched preferences high and low and found nothing. All software updates are complete, batteries are fine. Thanks!!