My iMac G4 (10.3.4) is giving me this weird problem with my Logitech MX 500 and Elite keyboard. Occasionally, my left-click will turn into a right-click (ctrl+click) and I either have to wait a couple minutes, or unplug the keyboard from the USB, and the replug it back in. Apparently, it might be something with the drivers, but I want to make sure before I go around uninstalling them and stuff.