Im not having any problems logging on.

This seems to be the same as garco had recently: http://forum.imcdb.org/forum_topic-1711-IMCDB_down.html
Do you still have the problem ?

This page appears when I click on the link to my comments page-

J'ai pas eu de problème Ça doit venir de quelque part entre le site et toi, ou alors ça marchait justement quand je suis allé dessus.

Depuis ce matin, le site est anormalement lent!!! Il faut 3 plombes pour charger une image ou pour passer d'une page à une autre... Pb de serveur?

Yes, also edit.
But as you said I've tried with another web browser - with Opera and now everything is ok.

By "open" you mean edit?

Funny, I can open my profile every time when I switch to French or German version, but still I can't edit posts.

No. Alright, thanks, I will check settings in my PC.

I do not know what it could be if you have the autologin enabled, as it previously solved similar problems.
Did you try in another webbrowser?