I found an answer which worked for me on these posts somewhere. There was a line which needed commenting out in
wp-includes/js/tinymce/tiny_mce_gzip.php
the line was
$supportsGzip = true;
just commenting this line seemed to work. i.e.
//$supportsGzip = true;
I don’t know enough about code to know exactly why but it seemed to be a server compatibility problem. If I can find the post again I’ll let you know
