Contact Captcha Não Funcionando

Boa tarde a todos , o captcha do meu form de contacto nao esta a mostrar a imagem , mas eu tenho outra aplicações criadas e esta a mostrar corretamente a imagem , fica aqui todo o codigo que esta relacionado com este captcha e formulario , alguma dica ? obrigado

ContactForm.php


<?php


/**

 * ContactForm class.

 * ContactForm is the data structure for keeping

 * contact form data. It is used by the 'contact' action of 'SiteController'.

 */

class ContactForm extends CFormModel

{

	public $name;

	public $email;

	public $subject;

	public $body;

	public $verifyCode;


	/**

	 * Declares the validation rules.

	 */

	public function rules()

	{

		return array(

			// name, email, subject and body are required

			array('name, email, subject, body', 'required'),

			// email has to be a valid email address

			array('email', 'email'),

			// verifyCode needs to be entered correctly

			array('verifyCode', 'captcha', 'allowEmpty'=>!CCaptcha::checkRequirements()),

		);

	}


	/**

	 * Declares customized attribute labels.

	 * If not declared here, an attribute would have a label that is

	 * the same as its name with the first letter in upper case.

	 */

	public function attributeLabels()

	{

		return array(

			'verifyCode'=>'Verification Code',

		);

	}

}

site controller


public function actions()

	{

		return array(

			// captcha action renders the CAPTCHA image displayed on the contact page

			'captcha'=>array(

				'class'=>'CCaptchaAction',

				'backColor'=>0xFFFFFF,

			),

			// page action renders "static" pages stored under 'protected/views/site/pages'

			// They can be accessed via: index.php?r=site/page&view=FileName

			'page'=>array(

				'class'=>'CViewAction',

			),

		);

	}


public function actionContact()

	{

		$model=new ContactForm;

		if(isset($_POST['ContactForm']))

		{

			$model->attributes=$_POST['ContactForm'];

			if($model->validate())

			{

				$name='=?UTF-8?B?'.base64_encode($model->name).'?=';

				$subject='=?UTF-8?B?'.base64_encode($model->subject).'?=';

				$headers="From: $name <{$model->email}>\r\n".

					"Reply-To: {$model->email}\r\n".

					"MIME-Version: 1.0\r\n".

					"Content-type: text/plain; charset=UTF-8";


				mail(Yii::app()->params['adminEmail'],$subject,$model->body,$headers);

				Yii::app()->user->setFlash('contact','Thank you for contacting us. We will respond to you as soon as possible.');

				$this->refresh();

			}

		}

		$this->render('contact',array('model'=>$model));

	}




view file


<?php

/* @var $this SiteController */

/* @var $model ContactForm */

/* @var $form CActiveForm */


$this->pageTitle=Yii::app()->name . ' - Contactos';

$this->breadcrumbs=array(

	'Contactos',

);

?>


<h1>Contacte-nos:</h1>

<div id="contactos">


<?php if(Yii::app()->user->hasFlash('contact')): ?>


<div class="flash-success">

	<?php echo Yii::app()->user->getFlash('contact'); ?>

</div>


<?php else: ?>


<p>

Se tem alguma pergunta a fazer, porfavor preencha o seguinte formulário ou contacte-nos atraves dos contactos abaixo indicados. Obrigado.

</p>


<div class="form">


<?php $form=$this->beginWidget('CActiveForm', array(

	'id'=>'contact-form',

	'enableClientValidation'=>true,

	'clientOptions'=>array(

		'validateOnSubmit'=>true,

	),

)); ?>


	<p class="note">Campos com <span class="required">*</span> são obrigatórios.</p>


	<?php echo $form->errorSummary($model); ?>


	<div class="row">

		<?php echo $form->labelEx($model,'name'); ?>

		<?php echo $form->textField($model,'name'); ?>

		<?php echo $form->error($model,'name'); ?>

	</div>


	<div class="row">

		<?php echo $form->labelEx($model,'email'); ?>

		<?php echo $form->textField($model,'email'); ?>

		<?php echo $form->error($model,'email'); ?>

	</div>


	<div class="row">

		<?php echo $form->labelEx($model,'subject'); ?>

		<?php echo $form->textField($model,'subject',array('size'=>60,'maxlength'=>128)); ?>

		<?php echo $form->error($model,'subject'); ?>

	</div>


	<div class="row">

		<?php echo $form->labelEx($model,'body'); ?>

		<?php echo $form->textArea($model,'body',array('rows'=>6, 'cols'=>50)); ?>

		<?php echo $form->error($model,'body'); ?>

	</div>


	<?php if(CCaptcha::checkRequirements()): ?>

	<div class="row">

		<?php echo $form->labelEx($model,'verifyCode'); ?>

		<div>

		<?php $this->widget('CCaptcha'); ?>

		<?php echo $form->textField($model,'verifyCode'); ?>

		</div>

		<div class="hint">Please enter the letters as they are shown in the image above.

		<br/>Letters are not case-sensitive.</div>

		<?php echo $form->error($model,'verifyCode'); ?>

	</div>

	<?php endif; ?>


	<div class="row buttons">

		<?php echo CHtml::submitButton('Submit'); ?>

	</div>


<?php $this->endWidget(); ?>


</div><!-- form -->


<?php endif; ?>


 <table>

<?php 


	require('protected/extensions/classes/sql.classe.php');

	$query=new sql;

	$sql="SELECT * FROM tipo_contacto ";

	$consulta_tipo_contacto=$query->do_sql($sql);

	while($linha_tipo_contacto=mysql_fetch_array($consulta_tipo_contacto)){

		list($n_tipo_contacto,$tipo_contacto)=$linha_tipo_contacto;

		echo "<td>".$tipo_contacto.":</td></tr>";

		

		$sql="SELECT * FROM contacto_videomax WHERE n_tipo_contacto like '".$n_tipo_contacto."' ";

		$consulta_contacto=$query->do_sql($sql);

		

		while($linha_contacto=mysql_fetch_array($consulta_contacto)){

			list($n_contacto_videomax,$n_tipo_contacto,$contacto_videomax,$n_categoria_contacto)=$linha_contacto;

			

			

			$sql="SELECT * FROM categoria_contacto WHERE n_categoria_contacto like '".$n_categoria_contacto."' ";

	$consulta_categoria_contacto=$query->do_sql($sql);

	

	while($linha_categoria_contacto=mysql_fetch_array($consulta_categoria_contacto)){

		list($n_categoria_contacto,$categoria_contacto)=$linha_categoria_contacto;

		echo "<tr><td>".$categoria_contacto.":</td>" ;

		}

		echo "<td>".$contacto_videomax."</td></tr>";	

	}

	

	}

		

?>

</table>

</div>



obrigado

após horas e horas a volta do problema descobri que o que causava a imagem nao aparecer era a primeira linha do codigo em branco no index principal -.- . nao sei porque que causa tal problema , mas fico feliz por ter conseguido resolver.