edit comment

Hi Guys,
Ive insert the comment widget in a page on my website. Post a comment is no problem, but after that everybody can edit each comment. You got two available options, one to answer and second to edit. I think it isnt meaningfull to edit comments. Therefore I search for a solution to delete / don`t show the option edit.
For information: I´ve install the plugin adminizer, with that plugin I can disable the edit_other_pages, it works, but after I save the change it doesn´t save, it changes itself into enable back.
I hope anybody can help.
Thanks.
Alex