Once the Boost is enabled and I add its code into the .htaccess something weird starts to happen. No changes are being saved when editing the content or settings, after hitting the submit button the page just reloads ignoring the changes, no messages are shown, and sometimes the admin menu disappears. For the not logged in users the Boost works fine, html files are being generated and served. But it makes impossible to administer the site, looks like it affects the Drupal for logged in users as well or something. As soon as I remove Boost's code from the .htaccess – everything starts working again.
Using it on Apache 2.2.29
Tried to set it for the specific pages only, but had no success.
Could you help me and tell what needs to be done?