When i click on an archive (tar.gz etc) in the internet, konqueror shows me its content instead download it

I did nt have this behaviour before in KDE 4.6.5 (now i have 4.8.2)

In case this is linked to the behaviour of a particular web server, can you provide a link please to an archive you can reproduce this with?

You can see an example in this video:
http://glenbox.free.fr/files/ark_download.ogv 2.3M

it opens the archive but the desired action is the download

On my system I recieve a dialog offering me the chance to open it with Ark, or save it to my system. Ark is not embedded into Konqueror.
However, even after tweaking the settings appropriately however, but I could disable the dialog.

Yes, just triggering the settings (disable integration and enble it again) made it work correctly