MySQL without old password (4.0 and lower) support

Hi,

I saw, my MySQL server had OLD-PASSWORDS enabled, and i wanted to disable it because is insecure, and does not allow the use of php5's mysqlnd driver.

I changed the config file, restarted the SQL server, and updated the password of all customer.

Until this point everything works fine.

And then i updated the iworx user's password exactly the same as it was (except the new, more secure hashing format) and InterWorx showed me a warning, that the server is not running, but i can reactivate it with a single click. The form asked me the username and password for the SQL server, and after submitting the form it showed an error message that the InterWorx can't connect to the SQL server.

Maybe InterWorx does not support MySQL's new password format?
Anybody has the same issue?

Thanks,
Robert