How do I enable Membership in the WPMU dashsboard?

I have installed Membership 3.4.6.1 through the WPMU dashboard and cannot enable the plugin. I receive this "You do not have sufficient permissions to access this page."
I am listed as the Admin Membership person. In fact I am the admin on this site.
Not sure what to do.
Please walk me through this to fix the issue.
What is installed on this site is...
WPMU DEV Dashboard
Configure 3.4.1 3.4.1
Membership
Configure 3.4.6.1 3.4.6.1
Installed WPMU DEV Themes

Social
1.3.7.2 1.3.7.2
Thanks,
Robert