Replaces angle brackets with double angle brackets

Hi,

I've been looking through the forum for a while for the answer, but not found one yet. My issue is (hopefully) simple.

Sometimes (dependent on browser / version) the tags get changed when the page saves, so a <p> tag becomes «p». Obviously when the page is reloaded with the text in it, it does not build as HTML and just becomes a text string.

Edit: This behaviour is happening on all browsers I am testing. There seems to be no rhyme or reason to it.

Has anyone experienced this behaviour?

I've added my config file for reference. I thought the config.entities = false might fix it, but it hasn't.

CKEDITOR.editorConfig = function( config )
{
   config.enterMode = CKEDITOR.ENTER_BR;
   config.shiftEnterMode = CKEDITOR.ENTER_BR;
   config.pasteFromWordRemoveFontStyles = true;
   config.toolbar_Basic =
[
    ['Bold','Italic','-','NumberedList','BulletedList','-','Link','Unlink']
];
   config.toolbar_BasicTable =
[
    ['Bold','Italic','-','NumberedList','BulletedList','-','Link','Unlink','-','Table','JustifyLeft','JustifyCenter','JustifyRight']
];
config.toolbar = 'Basic';
config.toolbarCanCollapse = false;
config.resize_enabled = false;
config.entities = false;
}; 

many thanks
Hamish