Spellchecker don't work

Hi,

I encounter some problems to configure spellchecker, I tried all things I could without success, that is the reason of my issue.

Firstly, I just try to enable it with the "default tinyMCE installation".

The spellchecker button appears on the editor, but, when I clicked on it I had this message :

Please specify: spellchecker_rpc_url

After searching on google, I found that cleaning the browser cache could help, so I did it, rebooted it.... same problem.

Ok, I read the install.txt again and saw some instructions about spellchecker install, instructions I followed :

1. I downloaded the latest spellchecker package on maxicode website
2. I edited the config.php to enable the require_once("classes/TinyGoogleSpell.class.php"); this is the line activated bu default, and I set $spellCheckerConfig['enabled'] = true;
3. Cleaned browser cache again and rebooted it

Now I go to my node creation page, the spellchecker icon is just not here, if I go to the setting page, the icon appear before spellchecker... ???!!

I'm out of idea how can I configure spellcheker to make it work

I'm on TinyMCE 3.1.0.1.