I just updated to 10.6.5 before the holidays and did not get a chance to use my MP much until now. I'm noticing that my mouse gets stuck and slows down a few times every hour. I've reset my machine, reset the PRAM and SMC. I've also tried my mighty mouse and it does the same thing as my Magic Mouse. I'm certain its the new OS, its monior but realyl annoying when your'e trying to get work done. Can I revert back to 10.6.4? I did back my system up to my external drive before I upgraded but I've done another backup since then so 10.6.4 backup is gone. Can I download the old 10.6.4 update files and revert back? Or am I stuck like my mouse?