why can't I log in this forum in opensuse

each time, “login” failed…
in windows xp, the log in is somehow quirk: each time, the screen shows me “403 Forbidden)” and I have to click the “Back” button on the explorer to post anything.

Try clearing cache and cookies

This is the message I see:

403 Forbidden
This site does not support HTTPS. Please try again using HTTP.

I have a snapshot of it but could post here.

the issue is cause by the password. now it’s ok.