I can't login to my email accounts

[ebrainte]

Yes, it started about a week ago without touching anything (at least i didnt) to one of my servers.

It had RC6, but some minutes ago i updated it to RC7, with the same problem.

I create a new email account to one of the domains i park with ispcp, then i triy to log in with the integrated squirrelmail tool, and it says that i'm writing a bad username or password (i tried with a mail client, thunderbird, with the same results).

Anybody knows how to fix the problem?

Thanks anyway!

PS: I'm using debian etch