Is there another way to verify Ubuntu 12.04 settings for Flash Drive handling than System Settings?

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http://askubuntu.com – I have two identical Acer tablet Netbooks with Ubuntu 12.04 LTS installed, and being new to Ubuntu, I have tried hard to keep their settings in sync so I know better through changes if the system breaks if I broke it. I have noticed that when I plug in a USB memory stick, one system mounts the device and opens a folder on the desktop right away, while the other seems to ignore the hardware and nothing happens (despite the light on the device initially blinking). I have gone into System Settings/Details/Removable Media (which Ubuntu Help refers to) looking for a setting to specify how Ubuntu (HowTos)