Joomla Administrator unable to add/edit events

I installed Scheduler in joomla 2.5. I added a link to the scheduler, and on that page when I am logged into the site as a administrator user, I am unable to click on the calendar and create an event. I looked in the admin area and under access rights, everything is blank, there are know users or groups to grant access to.

Is there something else that needs to be configured for this to work?



Does it show list of user groups? Corresponding user groups should be checked.