I realise this isn't the Bluetooth mouse, but...
I had an MS Wheel Mouse Optical, and it worked perfectly. Then I decided to install the IntelliPoint software that came with it. Big mistake. It totally screwed up my system, even removing it didn't fix everything. For example, I used to be able to click the scroll wheel to open a web page in a new Safari tab. After installing IntelliPoint, I could no longer do that.
I had to reinstall OS X to get it all working properly again 🙁