Site dosent refreshed

[alfanexus]

Several users has reported this and I also experience it on my iPad but not on my computer:

When I start the browser and go to my site I get an old version of the homepage (I use all activity as startpage) posts displayed are old and and after a few seconds I get the "There are 56 new Messages..." bar. And when I click it the feed gets updated, but when I close the browser and restart I see the old page again.

What could be wrong? Semms like some browser cache issue, but its stange that so many users experience the same problem. 

[maddog107_merged]

My users are seeing something something similar where if they are logged in they are missing posts, if they log out they see them, log back in they are gone. Different browsers, different computers same issue. Its really weird. 

[Gary_J_Wright]

advanced configuration in ACP  [server enviroment] tab -  set cache sidebar , header and footer blocks is set to 300 seconds (5mins) you can change this

Also same place but [data storage] tab and set cache for guests or disable it.

Finally there's a Leverage browser caching that is set via HTTP headers that could need adjusting - look it up on web for more details