Hello, I have had my Mac Pro for a few years now, and I rewired the bluetooth module when I first got it. I then had Airport installed about 3 months ago, and had to rewire it again because the "geniuses" at Apple didn't know the wires were labeled incorrectly. I just moved my computer downstairs and my Apple Bluetooth keyboard is not working correctly. It lags, repeats letters, etc. Upstairs on one desk, it worked fine. Down here, on a different desk, It's acting up. My keyboard is on the left middle of the desk, and the computer is on the floor on the right side. Total distance is less than three feet, with a file drawer inbetween. It works if I put it in my lap, but not on the desk. I just opened it up to check the wires again, and they are tight, and right. Any ideas?