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I have installed Ubuntu 12.04.1 on my new Lenovo IdeaPad Y580 M772DGE. Unfortunately the right mouse button is not working correctly. Every mouse button click is interpreted as a left mouse button click. I tried to uninstall and reinstall the synaptics (xserver-xorg-input-synaptics) drivers, but the problem is still present.

What else can I do? Any other suggestions?

Btw: My touchpad doesnt have a "Middle Mouse Button". Is it possible to emulate a "middle mouse click" with a keybord shortcut?

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If the right mouse button behaves like the left button and vice versa, try this:

What about the mouse orientation settings? Is it set to Right handed?

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