I've never really had an issue with the software but it would be nice if they would update for snowleopard

Meanwhile, while the rest of the world is updating their apps for Snow Leopard, Logitech is still trying to catch up to Leopard. The LCC sucks. Doesn't work with the MX5500 mouse and keyboard. Use ControllerMate instead. Last Logitech product I'm likely to ever purchase--though I do like the shape of the mouse. The only thing more useless than the LCC is the search function on their forum.

Basic functionality with the mouse and keyboard (MX5500) work via bluetooth and controllermate makes them both usable, but there are still some quirks I haven't figured out yet (the numeric keypad keys seem to suffix an additional control character that screws up some apps when you use the keypad). LCC doesn't appear to recognize either the keyboard or mouse however.

This is mentioned by several posters, but it deserves another mention. LCC silently installs APE (Application Enhancer), a well-known cause of system problems on Macs. The Logitech people were too lazy to write ACTUAL drivers, and resorted to using what is in effect malware.

what a piece of crap. Version 2.6 isn't any better. My logitech revolution mouse is a beautiful thing, but LCC drops connections to it constantly. And logitech expects you to use another utility to re-connect it, but it doesn't work.

Use USB Overdrive.

With the old version (2.4) I've had some problems with different applications. Now the 2.6 is more stable and I have no problems anymore.

Seems like the newest version (2.6) is working much better than previous versions. I have tried everything out there, and this is the only app that gives me the kind of scrolling I've come to expect with MX/VX mice.

Trashed it when it discovered it hindered the functionality of my favourite app: TextMate.
I hear it also causes an endless list of other serious problems kernel panics etc.
Avoid whenever possible.
More people should send angry emails to the developers - just like I did.

If you were wondering why Growl just stopped working just remove this POS from your system. I am not sure this was causing the weird hangs I had sometimes since I installed Leopard but definitely removing it made Growl work again.

I had been using LCC for a couple of years since I got my iBook. It worked without problems for a while. Then It started adding multiple mice and keyboards when I unplugged and then plugged the keyboard/mouse. This required a restart. The tracking on the screen became very choppy for no particular reason. Then, for no reason that I truly understand, when I would disconnect the USB receiver, I would be presented that dreaded Kernel Panic. That was the end of that.

I immediately went for ControllerMate. I was able to customize all of my LX500's special keys. I have had no problems with it after a week of use.

And no more kernel panic errors or application enhancer.

The latest version conflicts with my Open Vanilla input method, so I get rid of this Control Center, and I go straight to "ControllerMate". And it's way better than this Logitech driver.