having issue with database table in laravel

I am making registration system in laravel. When user inputs data then I store it in database. But when user clicked register button, then it gives me following error Unhandled Exception

Message:

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'makeitsnappy.user' doesn't exist

SQL: SELECT COUNT(*) AS `aggregate` FROM `user` WHERE `username` = ?

Bindings: array (
  0 => 'asdasd',
)
Location:

/Applications/MAMP/htdocs/laravel-test/laravel/database/connection.php on line 264

When I change the name of the table to "user" then says Unhandled Exception

Message:

SQLSTATE[42S02]: Base table or view not found: 1146 Table 'makeitsnappy.users' doesn't exist

SQL: INSERT INTO `users` (`username`, `password`, `updated_at`, `created_at`) VALUES (?, ?, ?, ?)

Bindings: array (
  0 => 'zafar',
  1 => '$2a$08$Xg47q9n65GZSS/l3xgYTyeTC7eICqMimf6KkvdFwSfiOgpFrI0tKe',
  2 => '2013-03-31 09:22:48',
  3 => '2013-03-31 09:22:48',
)
Location:

/Applications/MAMP/htdocs/laravel-test/laravel/database/connection.php on line 264

How can I solve this problem?

UPDATE CODE

Here are my models

user.php

class User extends Basemodel {
    public static $table = 'users';

    public static $rules = array(
        'username'=>'required|unique:user|alpha_dash|min:4',
        'password'=>'required|alpha_num|between:4,8|confirmed',
        'password_confirmation'=>'required|alpha_num|between:4,8'
    );
}

Basemodel.php

class Basemodel extends Eloquent {
    public static function validate($data) {
        return Validator::make($data, static::$rules);
    }
}

Here is my users.php controller

class Users_Controller extends Base_Controller {
    public $restful = true;

    public function get_new() {
        return View::make('users.new')->with('title', 'Make it Snappy - Register');
    }

    public function post_create() {
        $validation = User::validate(Input::all());

        if($validation->passes()) {
            User::create(array(
                    'username' => Input::get('username'),
                    'password' => Hash::make(Input::get('password'))
                ));

            return Redirect::to_route('home')->with('message', 'Thanks for registring');
        } else {
            return Redirect::to_route('register')->with_errors($validation)->with_input();
        }
    }
}