Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
.....wow seriously? No kidding. I was referring to a known issue between the magic mouse and Mac pro involving excessive lag....

Thanks for posting this, I had this problem and it actually led me to buy a Magic Trackpad. I'm using a Time Capsule as the router.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.