I purchased an apple bluetooth mouse last week for my MBA and it has been working great up until this morning. I went to use it and I have much delayed feedback in my mouse movements. Here are the things I tried: 1. Paired it with another mac w/bluetooth and it works normally. 2. Replaced the batteries on the bluetooth mouse, same issue. 3. Repaired the mouse with the MBA, same issue. 4. Changed the wireless channel on my airport express to 8. Any suggestions?