I have recently moved to knownhost. My problem is that whenever I want to change something in WP admin (css, header.php or permalinks) I get an error saying that my htaccess is not writable. Mu htaccess file is set to permissions 644. If I set it to 777 it works fine but wordpress recommends to leave it in 644 and it worked fine with 644 on my old host. I contacted the support and they said it won't work in 644 and that I had to change it whenever I want to update these files. How did you get around this? Is it safe to leave the file in 666 (i think it also works with 666).???