How do I get Ctrl + Alt + t to launch ther terminal in Linux Mint 13 MATE?

You can just use Keyboard Shortcuts, available via Main Menu's Search ..

Just Add a new item... eg. named mate-terminal ... the command should be mate-terminal

Then click on the new item (which appears at the bottom of the list).. and type Control-Alt-t ...

All done...

If you have compiz installed, you can also use its Commands options, but the above method should still work.


Go to keyboard shortcut at System Tools -->Preferences-->System Settings-->keyboard-->shortcut Custom shortcuts

add + 
Name: gnome-terminal
Command :gnome-terminal
ctrl+alt+t 

quickly try that