I’ve tried to open a few applications that require you to enter the admin password, like GParted, Aptik, and Synaptic Package Manager. the password prompt appears, I enter the password, the window closes, aaand… nothing. I’m trying to start the applications from the “Applications” and “System>Administration” menus at the top of the screen.
What about using the terminal, will it take your password?
Code:
gksudo synaptic
Nope, nothing happened. It returned this error though:
Invalid MIT-MAGIC-COOKIE-1 keyerror: XDG_RUNTIME_DIR not set in the environment.
(synaptic:23735): Gtk-WARNING **: cannot open display: :0.0Got some hits on that
https://www.google.com/search?q=Invalid+MIT-MAGIC-COOKIE-1+keyerror&ie=utf-8&oe=utf-8
Whats your thoughts?
Gtk warnings are not a concern.
Are you logged in as first user (system admin/root) or as a guest or other user?. 
I just changed my account type to “Administrator”. Do I need to restart? I can’t right now because I’m installing updates.
I assume that you have done a restart in the meantime?, is it working okay now?.
Yep, everything works like it should!
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