LCC 2.1.4 is a little more stable than 2.1.3 but its still unstable. I have 2 x sets of the S 530 Mac and they are going back to where I bought them from tomorrow.

Both Macs have become quite unstable exhibiting kernel panics and freezes when using the S 530 Mac. Various other bugs as well, such as:

1. Single click being mistaken for a double click.
2. Freezing after the Macs wakes from sleep, requiring the Logitech dongle to be unplugged and plagged back in.
3. Quite slow at times.
4. Functions cease to work (right now clicking the mouse wheel will not close the Dashboard) only F12 will.

I am quite shocked at my experience witha Logitech product of this calibre and in the future will probably not look favourably on other Logitech products where software drivers are required.