Having used the original Logitech Marble FX Trackman on PCs for almost 10 years now (and still loving it), I went out and bought the four-button version of Logitech Marble Mouse (which is actually a trackball despite the misleading name) after reading numerous raving reviews from many users. Installation went smoothly. When I tried to configure the mouse button settings via System Preferences/Logitech Control Center (LCC), that's when I ran into a problem. It seems the LCC pane was only designed for the older version of OS X as it wouldn't let me run the config from my current version 10.4.6. Because of this, I am able to use only two of the four buttons. I visited Logitech website for LCC update for OS X 10.4.6 but none were found. For those of you who own the Marble Mouse and runs OS X 10.4.x, is there anything we can do to restore full functionality to all four buttons? Nevermind. I'm a retard. It turns out that Logitech website does have an update for current version of 10.4.x but I didn't see it the first time I visited the site. How do I delete this post? I don't see a delete function anywhere.