Scroll button on Logitech mouse won't left/right "click" I just got a Mac and couldn't stand the Mighty Mouse it came with, so I got a nice little Logitech wireless USB mouse (Model M325).

It's much nicer, but when I have Finder in column views and go to back up or go forward directories with the middle mouse button (tilting the scroll button  left and right until it clicks), it doesn't work.

I'd understand if Apple just didn't support 3rd party mice, but I have another (much older) USB mouse (Logitech RX 650), and it works as expected out of the box...

Any ideas? Seems like the new Logitech mouse should work fine. Am I missing something?
Apple offers basic mouse support out of the box for just about any USB or Bluetooth mouse. However, the center button's right/left clicks are not considered standard mouse functionality. Therefore in order to utilize these buttons, a driver or special piece of software is required. Unfortunately Logitech does not provide any special software compatible with both the Mac and the mouse model you have. This support thread on Logitech's site includes a comment from a Logitech employee confirming this.

I have seen reports that Better Touch Tool supports certain Logitech models, to fill in the gaps that Logitech left in designing this mouse. It's worth a download, as it's free.