Hi brent,
sorry about the late reply.
Have you got any kind of firewall, anti spyware or any other security software installed which might be preventing it's access to the internet?
Also to run it as an admin, you can go to "C:\Program Files\GmailNotifier.Net\Sohail's Gmail Notifier for Google Apps (Multiple Accounts)" and open up properties of file GmailNotifierMulti.exe and then 'check' the box saying 'always run it as an administrator'
Thanks