Are you passing a proper group name in your register method call? Is your default group setup properly in the config file?[/quote]
TY again Ben. Since I couldn't pinpoint what I changed that caused the problem I just recopied the original model and controller and started over. I'm still getting the error. But that's ok because I want to add a form field to select a user group anyway this should take away the NULL value. I was able to add the form field and pass the value. Is there a way to pass the get_groups() array to the form data array?