FCKeditor is undefined

<!--//--><![CDATA[//><!--
var oFCK_1;if (Drupal.jsEnabled) {oFCK_1 = new FCKeditor( 'edit-body' );
oFCK_1.defaultState = 1;
oFCK_1.BasePath = '/sites/all/modules/fckeditor/fckeditor/';
oFCK_1.DrupalId = 'oFCK_1';
oFCK_1.Config['PluginsPath'] = '/sites/all/modules/fckeditor/plugins/';
oFCK_1.Config['CustomConfigurationsPath'] = "/sites/all/modules/fckeditor/fckeditor.config.js?1265707685";
oFCK_1.Config['TextareaID'] = "edit-body";
oFCK_1.Config['BodyId'] = "edit-body";
oFCK_1.ToolbarSet = "DrupalFull";
oFCK_1.Config['SkinPath'] = oFCK_1.BasePath + "editor/skins/office2003/";
oFCK_1.Config['DefaultLanguage'] = "fr";
oFCK_1.Config['AutoDetectLanguage'] = true;
oFCK_1.Height = "420";
oFCK_1.Config['ToolbarStartExpanded'] = true;
oFCK_1.Width = "100%";
 
oFCK_1.Config['EnterMode'] = 'p';
oFCK_1.Config['ShiftEnterMode'] = "br";
oFCK_1.Config['FontFormats'] = "p;div;pre;address;h1;h2;h3;h4;h5;h6";
oFCK_1.Config['FormatSource'] = true;
oFCK_1.Config['FormatOutput'] = true;
oFCK_1.Config['LinkUpload'] = false;
oFCK_1.Config['ImageUpload'] = false;
oFCK_1.Config['FlashUpload'] = false;
oFCK_1.Config['LinkBrowser'] = false;
oFCK_1.Config['ImageBrowser'] = false;
oFCK_1.Config['FlashBrowser'] = false;
oFCK_1.Config['EditorAreaCSS'] = "/sites/all/themes/apere/style.css,/sites/all/modules/fckeditor/fckeditor.css";
var fckInstances = {};fckInstances['edit-body'] = oFCK_1;
}
//--><!]]>

euuuh,

I don't realy understand... when i look at the source code, the script i reported here above is between a script open and a script close but is also included in head tags like other scripts...
Is that the problem? should he move between head and body tags?
If yes, how to do that?
thanks

I've made some research... and looked at these solutions : http://drupal.fckeditor.net/troubleshooting#1
I changed my theme into garland... it works... but i don't understant why it doesn't work with my theme.
It werked before i updated FCK...
i looked at the source code of the same page in garland or in my theme... i see no difference related to fck...
only difference i see on the page is that in garland there is the possibility to switch to plain text editor... but i think this is related to the fck... if he doesn't load, he won't give me the possibility to change it cause i'm already in plain text editor...

It can't be incompatibility with modyles because it works with garland...

Help

Greg

none of these solutions worked for me.
It still doesn't actives itself in my theme.
Another strange thing happens : when i want to create a page, and my default theme is bluemarine, it automatically changes to my problematic theme... and so FCK doesn't load...
any ideas why this happens?

thanks

Greg