Since yesterday each time I visit the forum , the page is not updated automatically and I have to hit the refresh button (even if I close explorer and select the url in my favorite)
Any idea on what can cause this and a solution ? (deleting the cache ??)
If you have it saved to your favourites, it's possible that you clicked the box to make it available offline. I'm pretty sure that if you did that, it'll always just bring up the same old page when you go to the site through your favourites.