After entering the password for logout on a 57i with XML scripts version 2.2.1 patch2, the phone freeze. Hard power off is needed to get it back to life. After some investigations, i've found that using a big number of keys (i'm using a 560M extension) is the reason of the freeze. Deleting a couple of keys in the .prf file solve the problem. I'm using a total of about 80 keys in the .prf file. The limit seems to be around 75 keys. I think that using 2 or 3 extensions is not possible with the actual firmware and xml scripts. I'm using the latest 18.104.22.1680 firmware. Best regards, Olivier.