Fckeditor 2.5 in Netscape and Mozilla (Not working fine)

Hi All,

I have just downloaded version 2.5 to get the inbuilt spellchecker functionality of fckeditor. But i am facing problem in Mozilla and Firefox. Although its working fine in ie6 and Firefox.

The problem is, Fckeditor didnt get the focus untill and unless i click on the "Maximize the editor size" button. The Width and Height set are 100% and 500 respectively.

The code is below:
File name: fckeditor_php5.php

function __construct( $instanceName,$instanceValue )
{
$this->InstanceName = $instanceName ;
$this->BasePath = '/incentivebook/codelibrary/fckeditor/' ;
$this->Width = '100%' ;
$this->Height = '500' ;
$this->ToolbarSet = 'Default' ;
$this->Value = $instanceValue ;

$this->Config = array() ;
}

File name: fckeditor_php4.php

function FCKeditor( $instanceName,$instanceValue )
{
$this->InstanceName = $instanceName ;
$this->BasePath = '/incentivebook/codelibrary/fckeditor/' ;
$this->Width = '100%' ;
$this->Height = '500' ;
$this->ToolbarSet = 'Default' ;
$this->Value = $instanceValue;

$this->Config = array() ;
}

But after clicking on Maximize button the fckeditor's other functionality like browing images, source code, spellchecker etc.. is not working.

Can anybody help me out?

Thanks & Regards,
Manmeet