Please read and follow the following guidelines before opening a new topic

First, make sure the plugin is up to date
Second, have a look around the forums for a similar topic as your problem may already be solved
Third, to test what’s wrong, disable all your other plugins and switch to the default WordPress theme. If the problem does not go away, open a support topic, if not, figure out which plugin is the cause of the problem and open a thread mentioning both plugins
Finally, if you decide to open a new thread, Use this template:

WordPress version:
Plugin Name and version:
I did this:
I expected the plugin to do this:
Instead it did this:

http://wordpress.org/extend/plugins/easy-sign-up/