I recently picked up a surprisingly cheap Apple Wireless Mighty Mouse for only €20 in a second hand shop. I jumped at the chance as they usually go for far more in eBay. I want it for my G5 Quad to compliment the ACD and matching keyboard. The wired Mighty Mouse I currently have with it is 1. Wired and 2. The scroll ball is stuck in one direction and cleaning it might be too fiddly for me. (I have tried the sticky tape method several times.) However when I got home I was disappointed to find it was very jagged and jumpy with huge 2 second or so delay. I suspect this is due to the their party USB Bluetooth dongle I use? But if so why? It's a Bluetooth 2.0 dongle as far as I'm aware so I don't see the issue. Luckily it does work perfectly, scroll ball and all, on my MBP, so I know it's not the mouse. I have a Magic Mouse for that though, so if really like to get it working with my G5 Quad. Reckon I get a different Bluetooth dongle? Or the genuine built in chip?