Visual c# 2010 express edition, items missing on right-click after reinstall

I've just re-installed Visual c# 2010 express edition.

On my previous install, without any special edition i had a "Go to definition" button, whenever i right clicked a method.

As you can see, now it disappeared

I tinkered around the customization menus above, but they only provide commands in the main tool bar, and not on the right click.

I also tried installing 2 different versions of it, and on a computer where the old c# 2010 remains, the "go to definition" command is available when i right-click a method.

I tried exporting its settings, but no command "go to definition" appears on the new one.

How can I fix it, and how can I re-install exactly the same version of visual c# 2010 express that i have on the other computer? It's version is 10.0.30319.1 RTMRel