New posts and changes dont show up

Hi,

i’m working on a wordpress blog, and im using these settings : http://gronemo.com/2012/07/25/tuto-bien-configurer-w3-total-cache-pour-accelerer-votre-site-wordpress/ (its in french but there are screens)
Except for “Prevent caching of objects after settings change ” in “Browser Cache”, which is checked

but when i make a new post (or when i edit one), users that are not logged cant see the changes… (no problem for logged users)
i have to “empty all caches” manually every time i post, but even with that, the category pages are all f**ed up.

when i disable w3tc, there is no problem

please help me

thanks in advance

http://ww.wp.xz.cn/extend/plugins/w3-total-cache/