@michalurban: I am experiencing the same problem.
I'm running on PR 1.2 and I don't like to use pidgin because of phone book integration and automatic start etc. so i use the other one. i set up my icq-account (or better: i imported it from my pre-pr 1.2 time) and first it was blinking as if it were connecting but after i activated and deactivated it it said network error. i had this problem with pr 1.1 too but back then it helped to deactivate the account, then editing the port and using the correct checkboxes, then activating again.
Been trying MSN protocol plugin for COnversations and Contacts v0.9 today, and tonight it wouldn't connect and threw up constant network error messages everytime I tried to connect. tried a reboot, still didn't work.
Reinstalled, still didn't work.
Eventually rebooted again, and now it's working....but for how long?