I am running Ubuntu in Virtualbox in Mac OS.
I found that rightclick in the guest Ubuntu, by tapping the trackpad while pressing ctrl key, doesn't work. E.G.
it doesn't show the menu for file properties and removal option, when right clicking a file under Nautilus.
in chrome browser, when right clicking a link, it doesn't show option to open it in a new tab.
when I connect a wired mouse to macbook pro, right clicking works i.e. brings out properties of a file, etc. So does two-finger tapping the trackpad.
How can I troubleshoot this?