I use Spaces with a Logitech MX-518 multi-button mouse. Spaces is set to activate on either keyboard F5 and mouse button 5. While Exposé is set to use other mouse button 4 and button 6 for showing All Windows and Desktop respectively. This works fine, most of the time. But, when I restart the Dock or relaunch Finder, Spaces will completely ignore the mouse button activation for it. Pressing F5 on the keyboard still works, so does the mouse buttons for Exposé. To get Spaces to recognise mouse button 5 again, I have to logout then login, or reboot. Simply rebinding the mouse button in the Exposé & Spaces prefpane does not work. Anyone else experiencing this? Any solution or workaround will be highly appreciated!