Password problem in mail_users

[butko]

After upgrading from 1.0.2 to 1.0.4 last night, everything went fine. But when i try to log in to my mail account it says "wrong password or unknown user". It's the same for all users, Ispcp login works just fine.
I compared the mail_users table in my backup ispcp database to find that the encrypted passwords are the same. However, when i set the same password for my mail in ispcp it changes encrypted password in database. As if the encryption algorithm changed. And then the login works.
There is an option to reenter everyone's password in ispcp, but as i have dozen of domains on this server and probably 20-30 mail accounts it would be quite a problem. For now i have restored the backup of 1.0.2, and now everything is ok. Anybody had similar problems?

Thank you for your time.

P.S. I am running a debian lenny 32 bit