Options+ is absolutely horrible. updated from Options, now my mouse pointer speed is completely different, and no matter how much i try to adjust it, i can't get it the same as before, which means muscle memory out the window and i have to re-learn it's movement speed again. furthermore, i used to have the mouse wheel button as 'Alt' and the back button (located on side) as 'Tab', so i could hold down the mouse wheel button, and click the back button to cycle through open applications. now that doesnt work. i've had to set the mouse wheel button as do nothing, and the back button as app switch which means relearning my shortcut buttons. what a nightmare Logitech!!! this is wasting my valuable time at work as i have a very streamlined setup and process, which is now in shambles due to this!