always open save as

[geevest.com]

sometimes,if i create a new thread,and click submit.
and if open my site always show the popup opening page.
sometimes always show PopUp (save as new_thread.php) and always make a duplicate content.
what's wrong with this?
always open popup in other forum.

[Marco van Herwaarden]

"sometimes" "always" - that is a contradiction. ;)

This is most likely caused by your server setup, please contact your host.

[geevest.com]

its always happen when i open other forums.
but now its okay,i dont know why.