WPMU Dashboard plugin is not showing up

I installed WPMU Dev Dashboard onto a multisite, and then my partner wanted to just use the plugins without the dashboard, so we deactivated it and removed it. After a few months I realized I wanted it back, so I reinstalled it, but now it shows up in the plugins menu, but not on the sidebar where all the settings are! I want to setup Automatic updates etc for all my WPMU plugins. Help!
How do I get the plugin to show up on my dashboard again?