Expo opens on it's own

[homr]

I recently installed LinuxMint 14 with Cinnamon into a VirtualBox VM on my Windows 7 machine. It seems to randomly open "Expo", showing me small versions of all of my workspaces while I'm working -- as if I had clicked on the hot-spot. Could I be doing some gesture or something to trigger this?

[viking777]

CTRL+ALT+UP goes to Expo
CTRL+ALT+DOWN goes to Scale

Apparently, so if you are using those shortcuts that would trigger it.

[homr]

It's happening when I'm not touching the keyboard. It seems to always be when I'm moving the cursor around with the mouse -- which is why I was wondering if there's a gesture for it or something. I've never seen it happen when the machine is just idle.

Maybe VirtualBox just randomly generates a ctrl-alt-up keypress from time to time?

[bimsebasse]

The top left hot corner triggers expo. In a virtualbox it's best to disable it. Got to Cinnamon Settings and disable hot corner.