I had held off updating for several versions because of all the negative comments here about things breaking. I dealt with the fact that I had to reset my wireless connector and resync my mouse before the system would recognize clicks after I woke from sleep...

Just updated to leopard, and the old driver couldn't find any logitech devices, so I gritted my teeth and upgraded.

Now the system understands that the mouse is still there after waking, I have a bunch of new functionality (including useful battery indicators), and I'm a happy camper.

I wish I'd known beforehand that the update was going to restore my device to default, so I could have written down my settings, but otherwise I'm very pleased after 3 days.

I guess I should read the other comments before I gripe. As someone else noted, deleting the preferences fixed the problem.

From now on I can just keep a copy of the working plist, I guess.

Version 0.8.2 appears to eventually go into a state where it takes up over 25% of my CPU when it is sitting idle for some time. Quitting and restarting causes it to settle back down to 4.5% (with top running in its window).

This was not a problem with 0.8.1, to which I am reverting until I get a MacIntel box and have to switch.