I am using a Microsoft Intellimouse with my newly acquired rMBP. I installed the appropriate driver from Microsoft (for OS X) and it works. Even the programmable buttons work, but these buttons do not work when I first boot. I find that I must go into the systems preferences dialog for the mouse and then they start working (even without changing any settings). Is there something I must do so that the driver "loads" on startup? I don't want to go into the dialog every time I boot.