I've had minor issues with the (self-installed) internal BT in my original Mac Pro before, with occasional glitches and recently, drops with my Magic Mouse. So last time I went to the US I bought a tiny Belkin BT adapter, hoping to address that. While there the Magic Touchpad came out and I'd had my eye on this for months (and dreamed about it for longer) so I'm quite perplexed that it hardly works. I'm not totally sure how to tell the Mac Pro to use the USB BT adapter instead of the standard internal one (with very poor connectivity) but I'm assuming it is working correctly in the front USB slot because it blinks slowly when not in use and blinks more quickly when I jiggle my Magic Mouse, like there's BT activity. Also, as soon as I yank the USB adapter the mouse goes dead, so I'm pretty sure it's using the new adapter, which isn't encased in a sound-insulated metal coffin. Yet my Magic Touchpad has worked very spottily, basically the cursor doesn't move except in occasional leaps and clicks work only some of the time. It's sitting on my desk less than 24" from the outer BT adapter. Curiously, the Magic Touchpad worked about the same way when I got it paired with my internal BT, super badly, and I assumed the Belkin would fix this, but it hasn't. I got a message that my wired numeric-keypad-having Apple aluminum keyboard USB ports didn't have enough power for the BT adapter (wanted it actually on my desktop) so that's why it's in the front. I don't suppose it's possible that the mouse is 'talking' to the Belkin BT adapter and the Magic Trackpad is still 'paired' with the internal? That's kind of how it's behaving, although that's totally bizare. Even stranger, the Bluetooth preference pane shows the trackpad as paired and connected, but the trackpad preference pane says no trackpad found, although it had just told me the battery level is 100%. Now I just popped the batteries in and out and it 'found' and 'connected' to the trackpad but nothing works except occasional clicking. Help appreciated!!